Tag: 300-400

Luo, Haiyan et al. published their research in Journal of Molecular Liquids in 2022 | CAS: 104-73-4

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. The lone pair is in an sp2 orbital, projecting outward from the ring in the same plane as the σ bonds. One of the examples of pyridines is the well-known alkaloid lithoprimidine, which is an A3 adenosine receptor antagonist and N,N-dimethylaminopyridine (DMAP) analog, commonly used in organic synthesis.HPLC of Formula: 104-73-4

How multiple noncovalent interactions regulate the aggregation behavior of amphiphilic triblock copolymer/surface-active ionic liquid mixtures was written by Luo, Haiyan;Jiang, Kun;Wang, Xiaotian;Yao, Haoyu;Liang, Xiangfeng;Li, Yingbo;Liu, Huizhou. And the article was included in Journal of Molecular Liquids in 2022.HPLC of Formula: 104-73-4 This article mentions the following:

Amphiphilic block copolymers/ionic liquids mixtures have been emerging as a new class of ‘chem. entity’ with numerous advanced applications. However, interaction mechanism governing the aggregation and the microstructure of aggregates are still far from full understanding. Herein, the role of noncovalent interactions in regulation of aggregation behaviors of mixtures of Pluronic F127 and surface-active ionic liquids, i.e. CnmimBr, CnPyBr and CnMPB is investigated by DLS, cryo-TEM, NMR and mol. dynamics simulation. The interaction modes between F127 and SAILs are remarkably dependent on the concentration and cationic headgroup of SAIL. At low SAIL concentration (<CMC), mixed micelles mainly composed of F127 with some SAIL cations embedded into micelles are formed, which was primarily driven by hydrophobic interaction. However, the residence of CnmimBr cations in micelles is quite different from that of CnPyBr and CnMPB cations due to its distinctive hydrogen bonding with PEO segment of F127. Upon further addition of SAILs (CSAILs > CMC), gradual disintegration of F127-rich micelles was observed due to the enhanced repulsive electrostatic force at micellar core-corona interface, accompanying with the re-formation of two types of micelles: one consisting of pure SAILs and one that SAIL micelles bound with F127 monomers via hydrogen bonding and/or hydrophobic interactions. This work provides new insight into the aggregation mechanism of these complex systems and will be helpful to rational tailoring innovative copolymers /IL-based system for specific applications. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4HPLC of Formula: 104-73-4).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. The lone pair is in an sp2 orbital, projecting outward from the ring in the same plane as the σ bonds. One of the examples of pyridines is the well-known alkaloid lithoprimidine, which is an A3 adenosine receptor antagonist and N,N-dimethylaminopyridine (DMAP) analog, commonly used in organic synthesis.HPLC of Formula: 104-73-4

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Jordan, Deborah et al. published their research in Journal of Surfactants and Detergents in 2012 | CAS: 104-73-4

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridine has a conjugated system of six π electrons that are delocalized over the ring. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals.Electric Literature of C17H30BrN

Synthesis, Characterization and Conductivity of Quaternary Nitrogen Surfactants Modified by the Addition of a Hydroxymethyl Substructure on the Head Group was written by Jordan, Deborah;Tan, Eng;Hegh, Dylan. And the article was included in Journal of Surfactants and Detergents in 2012.Electric Literature of C17H30BrN This article mentions the following:

Two novel series of hydroxymethyl group-appended quaternary nitrogen surfactants (QNSs) based on the aliphatic N-alkyl-trimethylammonium and aromatic N-alkylpyridinium head groups were synthesized from the appropriate nitrogen head group precursor and 1-bromoalkane. The QNSs were characterized using 1H and 13C NMR and IR spectroscopy, and their purity confirmed using elemental anal. The solution behavior of the QNSs was investigated by conductivity, assessing both the aggregation concentration as well as the amount of counter-ion dissociation The results showed a general decrease in the aggregation concentration for the compounds with the hydroxymethyl addition, where the pyridinium compounds were more affected than the ammonium QNSs. In contrast, the extent of counter-ion dissociation (α) from the aggregate was slightly increased for the ammonium compounds but that of the pyridinium compounds was not generally affected by the structural modification. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Electric Literature of C17H30BrN).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridine has a conjugated system of six π electrons that are delocalized over the ring. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals.Electric Literature of C17H30BrN

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Stoermann, Florian et al. published their research in MRS Online Proceedings Library in 2015 | CAS: 104-73-4

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. In contrast to benzene, Pyridine’s electron density is not evenly distributed over the ring, reflecting the negative inductive effect of the nitrogen atom. Pyridine derivatives are also useful as small-molecule α-helix mimetics that inhibit protein-protein interactions, as well as functionally selective GABA ligands.Safety of 1-Dodecylpyridin-1-ium bromide

Photo-reversibility of cinnamylidene acetic acid derived crosslinks in poly(ε-caprolactone) networks was written by Stoermann, Florian;Wischke, Christian;Lendlein, Andreas. And the article was included in MRS Online Proceedings Library in 2015.Safety of 1-Dodecylpyridin-1-ium bromide This article mentions the following:

Photoswitchable polymeric materials comprise moieties that undergo light-induced chem. reactions or conformational alteration. The reversibility of photo-responsive mol. switches has an influence on material functions observed on the macroscopic level such as reversibility of shape switching, especially with regard to the number of cycles. Cinnamylidene acetic acid (CAA) has received attention due to its reversible dimerization by [2 + 2] cycloaddition reactions. In the present study, possible side-reactions during photo-scission of the CAA dimers as netpoints in poly(ε-caprolactone) based materials were studied by fluorescence spectroscopy, HPLC and 1H, 1H-COSY. Liberation of fluorescent fragments, which have their origin in the various dimer structures, could only be found in small amounts, while a non-identified species seems to be generated during dimerization and photo-scission. The results furthermore suggest that CAA-based switches in PCL-networks do not provide full reversibility of netpoint formation under the examined conditions, due to non-selective side-reactions, which could lead to an attenuation of the macroscopic effect in multiple photo-cycles. In perspective, the design of CAA derivatives with enhanced photo-reversibility should be targeted. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Safety of 1-Dodecylpyridin-1-ium bromide).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. In contrast to benzene, Pyridine’s electron density is not evenly distributed over the ring, reflecting the negative inductive effect of the nitrogen atom. Pyridine derivatives are also useful as small-molecule α-helix mimetics that inhibit protein-protein interactions, as well as functionally selective GABA ligands.Safety of 1-Dodecylpyridin-1-ium bromide

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Jordan, Deborah et al. published their research in Journal of Surfactants and Detergents in 2012 | CAS: 104-73-4

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridine has a conjugated system of six π electrons that are delocalized over the ring. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals.Electric Literature of C17H30BrN

Synthesis, Characterization and Conductivity of Quaternary Nitrogen Surfactants Modified by the Addition of a Hydroxymethyl Substructure on the Head Group was written by Jordan, Deborah;Tan, Eng;Hegh, Dylan. And the article was included in Journal of Surfactants and Detergents in 2012.Electric Literature of C17H30BrN This article mentions the following:

Two novel series of hydroxymethyl group-appended quaternary nitrogen surfactants (QNSs) based on the aliphatic N-alkyl-trimethylammonium and aromatic N-alkylpyridinium head groups were synthesized from the appropriate nitrogen head group precursor and 1-bromoalkane. The QNSs were characterized using 1H and 13C NMR and IR spectroscopy, and their purity confirmed using elemental anal. The solution behavior of the QNSs was investigated by conductivity, assessing both the aggregation concentration as well as the amount of counter-ion dissociation The results showed a general decrease in the aggregation concentration for the compounds with the hydroxymethyl addition, where the pyridinium compounds were more affected than the ammonium QNSs. In contrast, the extent of counter-ion dissociation (α) from the aggregate was slightly increased for the ammonium compounds but that of the pyridinium compounds was not generally affected by the structural modification. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Electric Literature of C17H30BrN).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridine has a conjugated system of six π electrons that are delocalized over the ring. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals.Electric Literature of C17H30BrN

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Stoermann, Florian et al. published their research in MRS Online Proceedings Library in 2015 | CAS: 104-73-4

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. In contrast to benzene, Pyridine’s electron density is not evenly distributed over the ring, reflecting the negative inductive effect of the nitrogen atom. Pyridine derivatives are also useful as small-molecule α-helix mimetics that inhibit protein-protein interactions, as well as functionally selective GABA ligands.Safety of 1-Dodecylpyridin-1-ium bromide

Photo-reversibility of cinnamylidene acetic acid derived crosslinks in poly(ε-caprolactone) networks was written by Stoermann, Florian;Wischke, Christian;Lendlein, Andreas. And the article was included in MRS Online Proceedings Library in 2015.Safety of 1-Dodecylpyridin-1-ium bromide This article mentions the following:

Photoswitchable polymeric materials comprise moieties that undergo light-induced chem. reactions or conformational alteration. The reversibility of photo-responsive mol. switches has an influence on material functions observed on the macroscopic level such as reversibility of shape switching, especially with regard to the number of cycles. Cinnamylidene acetic acid (CAA) has received attention due to its reversible dimerization by [2 + 2] cycloaddition reactions. In the present study, possible side-reactions during photo-scission of the CAA dimers as netpoints in poly(ε-caprolactone) based materials were studied by fluorescence spectroscopy, HPLC and 1H, 1H-COSY. Liberation of fluorescent fragments, which have their origin in the various dimer structures, could only be found in small amounts, while a non-identified species seems to be generated during dimerization and photo-scission. The results furthermore suggest that CAA-based switches in PCL-networks do not provide full reversibility of netpoint formation under the examined conditions, due to non-selective side-reactions, which could lead to an attenuation of the macroscopic effect in multiple photo-cycles. In perspective, the design of CAA derivatives with enhanced photo-reversibility should be targeted. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Safety of 1-Dodecylpyridin-1-ium bromide).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. In contrast to benzene, Pyridine’s electron density is not evenly distributed over the ring, reflecting the negative inductive effect of the nitrogen atom. Pyridine derivatives are also useful as small-molecule α-helix mimetics that inhibit protein-protein interactions, as well as functionally selective GABA ligands.Safety of 1-Dodecylpyridin-1-ium bromide

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Kharitonova, T. V. et al. published their research in Colloid Journal (Translation of Kolloidnyi Zhurnal) in 2002 | CAS: 104-73-4

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridine’s the lone pair does not contribute to the aromatic system but importantly influences the chemical properties of pyridine, as it easily supports bond formation via an electrophilic attack. One of the examples of pyridines is the well-known alkaloid lithoprimidine, which is an A3 adenosine receptor antagonist and N,N-dimethylaminopyridine (DMAP) analog, commonly used in organic synthesis.Application of 104-73-4

Adsorption and micellization in solutions of dodecylpyridinium bromide-nonionic surfactant mixtures was written by Kharitonova, T. V.;Ivanova, N. I.;Summ, B. D.. And the article was included in Colloid Journal (Translation of Kolloidnyi Zhurnal) in 2002.Application of 104-73-4 This article mentions the following:

Dependences of the surface tension of aqueous solutions of cationic (dodecylpyridinium bromide) and nonionic (Tween 80, Triton X-100) surfactants and their mixtures on total surfactant concentration and solution composition were studied. The values of critical micellization concentration (CMC) and excess free energy of adsorption were determined from tensiometric measurements. Based on Rubingh-Rosen model (approximation of the theory of regular solutions), the compositions of micelles and adsorption layers at the solution-air interface as well as parameters of interaction between the mols. of cationic and nonionic surfactants were calculated for the systems indicated above. It was established that, in the case of surfactant mixtures with considerable difference in the CMCs, the micelles of individual surfactant with lower CMC value are formed. The effect of neg. deviation from the ideality during the adsorption of surfactants from mixed solutions at the solution-air interface was disclosed. It was shown that the interaction energy depends significantly on the composition of mixed systems. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Application of 104-73-4).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridine’s the lone pair does not contribute to the aromatic system but importantly influences the chemical properties of pyridine, as it easily supports bond formation via an electrophilic attack. One of the examples of pyridines is the well-known alkaloid lithoprimidine, which is an A3 adenosine receptor antagonist and N,N-dimethylaminopyridine (DMAP) analog, commonly used in organic synthesis.Application of 104-73-4

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Garcia, M. Teresa et al. published their research in Comunicaciones presentadas a las Jornadas del Comite Espanol de la Detergencia in 2011 | CAS: 104-73-4

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Safety of 1-Dodecylpyridin-1-ium bromide

Surfactant-like behavior and antimicrobial activity of long-chain ionic liquids in aqueous solution was written by Garcia, M. Teresa;Cornellas, Anna;Comelles, Francesc;Ribosa, Isabel;Manresa, Angeles;Perez, Lourdes. And the article was included in Comunicaciones presentadas a las Jornadas del Comite Espanol de la Detergencia in 2011.Safety of 1-Dodecylpyridin-1-ium bromide This article mentions the following:

Two series of long chain imidazolium and pyridinium based ionic liquids (1-alkyl-3-methylimidazolium and 1-alkylpyridinium bromides) were synthesized and the effect of the alkyl chain length and the nature of the cationic head group on micellization and antimicrobial activity of the ionic liquids (ILs) were investigated. Tensiometry, conductimetry, spectrofluorimetry and PGSE-NMR were applied to study the self-aggregation of the amphiphilic ILs in aqueous solution The ILs investigated displayed surface activity and the characteristic chain length dependence of the micellization process of surfactants. The antimicrobial activity was evaluated against Gram-neg. and Gram-pos. bacteria and fungi. ILs containing more than 8 carbon atoms in the alkyl chain’ showed antimicrobial activity. Their efficiency as antimicrobial agents increased with the hydrophobicity of the amphiphilic cation being the C14 homologous the most active compounds In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Safety of 1-Dodecylpyridin-1-ium bromide).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Safety of 1-Dodecylpyridin-1-ium bromide

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Varade, D. et al. published their research in Journal of Dispersion Science and Technology in 2005 | CAS: 104-73-4

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Name: 1-Dodecylpyridin-1-ium bromide

Interaction in mixed micellization of sodium N-tetradecanoylsarcosinate with ionic and nonionic surfactants was written by Varade, D.;Bahadur, P.. And the article was included in Journal of Dispersion Science and Technology in 2005.Name: 1-Dodecylpyridin-1-ium bromide This article mentions the following:

The interaction of aqueous binary mixtures of an N-acyl amino acid based anionic surfactant, sodium N-tetradecanoylsarcosinate (C14-sarcosinate), in the presence of cationic, anionic, and nonionic surfactants was studied by surface tension and viscosity measurements. The cationic surfactants dodecyltrimethylammonium bromide (DTAB), tetradecyltrimethylammonium bromide (TTAB), hexadecyltrimethylammonium bromide (CTAB), dodecylpyridinium bromide (DPyB), and hexadecylpyridinium bromide (CPyB), the anionic surfactant sodium dodecyl sulfate (SDS), and the nonionic surfactant Triton X-100 were used. The critical micelle concentration (CMC) values of pure surfactants and their mixtures were determined by surface tension measurements at different mixed ratios. The interaction parameters that measure the interaction between the surfactant mols. in the mixed micelle were computed by Rubingh’s approach. The viscosity of the mixed systems of C14-sarcosinate with cationic surfactants (having higher chain length) at various mole fractions suggested a growth in mixed micelles with maxima at 0.4 mol fraction of C14-sarcosinate. The mixed micelles remain spherical with SDS and Triton X-100. These changes in viscosities are due to changes in the microstructure of the mixed aggregates. Triton X-100 shows a steep rise in cloud point in the presence of C14-sarcosinate. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Name: 1-Dodecylpyridin-1-ium bromide).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Name: 1-Dodecylpyridin-1-ium bromide

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Mata, Jitendra et al. published their research in Thermochimica Acta in 2005 | CAS: 104-73-4

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridines are an important class of heterocycles and occur in polysubstituted forms in many naturally occurring biologically active compounds, drug molecules and chiral ligands. One of the examples of pyridines is the well-known alkaloid lithoprimidine, which is an A3 adenosine receptor antagonist and N,N-dimethylaminopyridine (DMAP) analog, commonly used in organic synthesis.Quality Control of 1-Dodecylpyridin-1-ium bromide

Aggregation behavior of quaternary salt based cationic surfactants was written by Mata, Jitendra;Varade, Dharmesh;Bahadur, Prashant. And the article was included in Thermochimica Acta in 2005.Quality Control of 1-Dodecylpyridin-1-ium bromide This article mentions the following:

The aggregation behavior of pure cationic surfactants (quaternary salts) in water was studied by elec. conductivity (at 293.15-333.15 K), surface tension, dye solubilization, and viscosity measurements (at 303.15 K). Critical micelle concentrations (CMCs), degree of counter ion dissociation (β), aggregation number and sphere-to-rod transition for cationic surfactants are reported. Using law of mass action model, the thermodn. parameters, viz. Gibbs energy (ΔG°m), enthalpy (ΔH°m), and entropy (ΔS°m) were evaluated. The plots of differential conductivity, (dk/dc)T,P, vs. the total surfactant concentration enables us to determine the CMC values more precisely than the conventional method. Surfactants with longer hydrocarbon chain are adapted to rodlike micelle better than to a spherical micelle. The data are explained in terms of mol. characteristics of surfactants viz. nonpolar chain length, polar head group size, and counter ion. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Quality Control of 1-Dodecylpyridin-1-ium bromide).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridines are an important class of heterocycles and occur in polysubstituted forms in many naturally occurring biologically active compounds, drug molecules and chiral ligands. One of the examples of pyridines is the well-known alkaloid lithoprimidine, which is an A3 adenosine receptor antagonist and N,N-dimethylaminopyridine (DMAP) analog, commonly used in organic synthesis.Quality Control of 1-Dodecylpyridin-1-ium bromide

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Devnani, H. et al. published their research in Research & Reviews: A Journal of Life Sciences in 2016 | CAS: 104-73-4

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridines are an important class of heterocycles and occur in polysubstituted forms in many naturally occurring biologically active compounds, drug molecules and chiral ligands. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Application of 104-73-4

Preparation of lipase loaded chitosan nanoparticles and its estimation using different additives was written by Devnani, H.;Dani, U.;Bahadur, A.. And the article was included in Research & Reviews: A Journal of Life Sciences in 2016.Application of 104-73-4 This article mentions the following:

Chitosan nanoparticles were prepared by ionic gelation technique and simultaneously entrapment of lipase was carried out in it. These were then subjected to additives such as surfactants, pluronics and ionic liquids Activity of lipase was assayed in free as well as immobilized conditions. It was then compared to immobilized enzyme bound to these polymers. The results have been graphically displayed. Among surfactants, tween 80 and triton X-100 were used with the latter showing better activity. Pluronic P127 showed maximum activity of the enzyme and ionic liquid hexadecyl pyridinium bromide displayed best results. Stability of chitosan nanoparticles was observed on combining these with the additives. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Application of 104-73-4).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridines are an important class of heterocycles and occur in polysubstituted forms in many naturally occurring biologically active compounds, drug molecules and chiral ligands. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Application of 104-73-4

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem