Category: 1603-41-4

Pyridine has a conjugated system of six π electrons that are delocalized over the ring. 1603-41-4, formula is C6H8N2, Name is 2-Amino-5-methylpyridine. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. Application In Synthesis of 1603-41-4.

Hao, Wei;Li, Kailu;Ye, Chenyang;Yu, Wenquan;Chang, Junbiao research published 《 Iodine-Mediated C=C Double Bond Cleavage toward Pyrido[2,1-b]quinazolinones》, the research content is summarized as follows. A transition-metal-free C=C double bond cleavage reaction employing mol. iodine is described. In the presence of K₂CO₃ as the base, I₂-mediated C = C bond cleavage followed by intramol. annulation of N-(2-vinylaryl)pyridin-2-amine substrates, e.g., N-(2-vinylnaphthalen-1-yl)pyridin-2-amine produces pyrido[2,1-b]quinazolinones, e.g., 7H-benzo[h]pyrido[2,1-b] quinazolin-7-one and related heterocyclic compounds This reaction can be completed on a gram scale and has been successfully applied to the synthesis of compounds with important biol. properties such as 11H-pyrido[2,1-b]quinazolin-11-one and 2-methyl-11-oxo-11H-pyrido[2,1-b]quinazoline-8-carboxylic acid, including efflux pump inhibitory and antiallergic activities.

Application In Synthesis of 1603-41-4, 2-Amino-5-methylpyridine, also known as 2-Amino-5-methylpyridine, is a useful research compound. Its molecular formula is C6H8N2 and its molecular weight is 108.14 g/mol. The purity is usually 95%.
2-Amino-5-methylpyridine is a chemical compound that belongs to the group of methyl ketones. It has a nitrogen atom and an oxygen atom in its structure, which allows it to form hydrogen bonds with other molecules. 2-Amino-5-methylpyridine can be obtained by reacting hydrochloric acid and xanthone in the presence of a base. The compound is highly reactive and has been shown to have antiinflammatory properties. This can be attributed to its ability to inhibit prostaglandin synthesis. 2-Amino-5-methylpyridine also has fluorescence properties that are sensitive to pH changes and can be used as a probe for metal ions. 2-Amino-5-methylpyridine is an organic compound that contains a methyl group, two nitrogen atoms, and one oxygen atom in its chemical structure. This molecule can form hydrogen bonds with other molecules due to its nitrogen atoms and oxygen atom,, 1603-41-4.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine has a conjugated system of six π electrons that are delocalized over the ring. 1603-41-4, formula is C6H8N2, Name is 2-Amino-5-methylpyridine. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. Reference of 1603-41-4.

Hansa, Raj KC.;Khan, M. M. K.;Frangie, M. M.;Gilmore, D. F.;Shelton, R. S.;Savenka, A. V.;Basnakian, A. G.;Shuttleworth, S. L.;Smeltzer, M. S.;Alam, M. A. research published 《 4-4-(Anilinomethyl)-3-[4-(trifluoromethyl)phenyl]-1H-pyrazol-1-ylbenzoic acid derivatives as potent anti-gram-positive bacterial agents》, the research content is summarized as follows. A collection of potent antimicrobials consisting of novel 1,3-bis-benzoic acid and trifluoromethyl Ph derived pyrazoles I [R = HO(O)C, F₃C; R¹ = Ph, 3-bromophenyl, 5-iodopyridin-2-yl, etc.] was synthesized and tested for antibacterial activity. The majority of trifluoromethyl Ph derivatives are highly potent growth inhibitors of Gram-pos. bacteria and showed low toxicity to human cultured cells. In particular, two compounds I [R = F₃C; R¹ = 3-fluoro-5-(trifluoromethyl)phenyl, 3,5-dichloro-4-fluorophenyl] were selected for addnl. studies. These compounds were highly effective against Staphylococcus aureus as shown by a low min. inhibitory concentration (MIC), a bactericidal effect in time-kill assays, moderate inhibition of biofilm formation as well as biofilm destruction and a bactericidal effect against stationary phase cells representing non-growing persister cells. Multistep resistance assays showed a very low tendency for S. aureus and Enterococcus faecalis to develop resistance through mutation. Addnl., in vivo mouse model studies showed no harmful effects at doses up to 50 mg/kg using 14 blood plasma organ toxicity markers or TUNEL assay in liver and kidney. Investigations into the mode of action by performing macromol. synthesis inhibition studies showed a broad range of inhibitory effects, suggesting targets that have a global effect on bacterial cell function.

Reference of 1603-41-4, 2-Amino-5-methylpyridine, also known as 2-Amino-5-methylpyridine, is a useful research compound. Its molecular formula is C6H8N2 and its molecular weight is 108.14 g/mol. The purity is usually 95%.
2-Amino-5-methylpyridine is a chemical compound that belongs to the group of methyl ketones. It has a nitrogen atom and an oxygen atom in its structure, which allows it to form hydrogen bonds with other molecules. 2-Amino-5-methylpyridine can be obtained by reacting hydrochloric acid and xanthone in the presence of a base. The compound is highly reactive and has been shown to have antiinflammatory properties. This can be attributed to its ability to inhibit prostaglandin synthesis. 2-Amino-5-methylpyridine also has fluorescence properties that are sensitive to pH changes and can be used as a probe for metal ions. 2-Amino-5-methylpyridine is an organic compound that contains a methyl group, two nitrogen atoms, and one oxygen atom in its chemical structure. This molecule can form hydrogen bonds with other molecules due to its nitrogen atoms and oxygen atom,, 1603-41-4.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine is a basic heterocyclic organic compound with the chemical formula C5H5N. It is structurally related to benzene, with one methine group (=CH−) replaced by a nitrogen atom. 1603-41-4, formula is C6H8N2, Name is 2-Amino-5-methylpyridine. It is a highly flammable, weakly alkaline, water-miscible liquid with a distinctive, unpleasant fish-like smell. Quality Control of 1603-41-4.

Hagimori, Masayori;Yoshida, Tatsusada;Nishimura, Yasuhisa;Ogawa, Yukiko;Tanaka, Keitaro research published 《 Syntheses of novel pyridine-based low-molecular-weight luminogens possessing aggregation-induced emission enhancement (AIEE) properties》, the research content is summarized as follows. Novel pyridine-based fluorescing compounds, viz. pyrido[1,2-a]pyrrolo[3,4-d]pyrimidines I [R = H, Me] and N-methyl-4-((pyridin-2-yl)amino)maleimides II [R¹ = F, CN, Br, etc.] were selectively prepared by a one-pot reaction between a functionalized maleimide and 2-aminopyridines with electron-donating or electron-withdrawing groups at position 5 and were investigated photophys. and computationally. The photophys. studies revealed that all the synthesized compounds I and II exhibited fluorescence in organic solvents, while compounds II, which were based on an acceptor-donor-acceptor (A-D-A) system, exhibited aggregation-induced emission enhancement (AIEE) properties in aqueous media. Compounds II [R¹ = Br, CF₃] showed 7.0 and 15 times fluorescence enhancement. Time-dependent d. functional theory (TD-DFT) calculations were performed to gain better insight into the electronic nature of the compounds I [R = H] and II [R¹ = Br, CF₃] with and without AIEE properties.

Quality Control of 1603-41-4, 2-Amino-5-methylpyridine, also known as 2-Amino-5-methylpyridine, is a useful research compound. Its molecular formula is C6H8N2 and its molecular weight is 108.14 g/mol. The purity is usually 95%.
2-Amino-5-methylpyridine is a chemical compound that belongs to the group of methyl ketones. It has a nitrogen atom and an oxygen atom in its structure, which allows it to form hydrogen bonds with other molecules. 2-Amino-5-methylpyridine can be obtained by reacting hydrochloric acid and xanthone in the presence of a base. The compound is highly reactive and has been shown to have antiinflammatory properties. This can be attributed to its ability to inhibit prostaglandin synthesis. 2-Amino-5-methylpyridine also has fluorescence properties that are sensitive to pH changes and can be used as a probe for metal ions. 2-Amino-5-methylpyridine is an organic compound that contains a methyl group, two nitrogen atoms, and one oxygen atom in its chemical structure. This molecule can form hydrogen bonds with other molecules due to its nitrogen atoms and oxygen atom,, 1603-41-4.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine has a conjugated system of six π electrons that are delocalized over the ring. 1603-41-4, formula is C6H8N2, Name is 2-Amino-5-methylpyridine. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. COA of Formula: C6H8N2.

Gorski, Bartosz;Barthelemy, Anne-Laure;Douglas, James J.;Julia, Fabio;Leonori, Daniele research published 《 Copper-catalysed amination of alkyl iodides enabled by halogen-atom transfer》, the research content is summarized as follows. Here, an alternative amination strategy was demonstrated for the synthesis of alkyl amines, e.g., I where alkyl iodides are used as radical precursors instead of electrophiles. Use of α-aminoalkyl radicals enabled the efficient conversion of the iodides into the corresponding alkyl radical by halogen-atom transfer, while copper catalysis assembled the sp³ C-N bonds at room temperature The process provided SN²-like programmability, and application in late-stage functionalization of several densely functionalized pharmaceuticals demonstrated its utility in the preparation of valuable N-alkylated drug analogs.

COA of Formula: C6H8N2, 2-Amino-5-methylpyridine, also known as 2-Amino-5-methylpyridine, is a useful research compound. Its molecular formula is C6H8N2 and its molecular weight is 108.14 g/mol. The purity is usually 95%.
2-Amino-5-methylpyridine is a chemical compound that belongs to the group of methyl ketones. It has a nitrogen atom and an oxygen atom in its structure, which allows it to form hydrogen bonds with other molecules. 2-Amino-5-methylpyridine can be obtained by reacting hydrochloric acid and xanthone in the presence of a base. The compound is highly reactive and has been shown to have antiinflammatory properties. This can be attributed to its ability to inhibit prostaglandin synthesis. 2-Amino-5-methylpyridine also has fluorescence properties that are sensitive to pH changes and can be used as a probe for metal ions. 2-Amino-5-methylpyridine is an organic compound that contains a methyl group, two nitrogen atoms, and one oxygen atom in its chemical structure. This molecule can form hydrogen bonds with other molecules due to its nitrogen atoms and oxygen atom,, 1603-41-4.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine has a conjugated system of six π electrons that are delocalized over the ring. 1603-41-4, formula is C6H8N2, Name is 2-Amino-5-methylpyridine. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. SDS of cas: 1603-41-4.

Grechnikov, Alexander A.;Borodkov, Alexey S.;Simanovsky, Yaroslav O.;Nikiforov, Sergey M. research published 《 Silicon surface assisted laser desorption ionization mass spectrometry for quantitative analysis》, the research content is summarized as follows. The approach to quant. anal. by silicon Surface Assisted Laser Desorption Ionization Mass Spectrometry (Si-SALDI) is proposed. The approach is based on the new method for forming an active surface layer on a silicon substrate by exposing to laser radiation directly in the ion source of a mass spectrometer. The method can be used repeatedly on the same substrate, providing high reproducibility of its surface ionization properties and high ionization efficiency of organic compounds Within the proposed approach, the methods of improvement of signal reproducibility are also considered, including continuous monitoring of the silicon surface ionization properties using a Knudsen effusion cell; scanning the surface of a silicon substrate with a laser beam; selecting the optimal value of laser fluence and using a reproducible sample introduction technique. It is demonstrated that this approach can be successfully applied to quantify clin. relevant concentrations of pharmaceutical drugs in extracts of blood.

SDS of cas: 1603-41-4, 2-Amino-5-methylpyridine, also known as 2-Amino-5-methylpyridine, is a useful research compound. Its molecular formula is C6H8N2 and its molecular weight is 108.14 g/mol. The purity is usually 95%.
2-Amino-5-methylpyridine is a chemical compound that belongs to the group of methyl ketones. It has a nitrogen atom and an oxygen atom in its structure, which allows it to form hydrogen bonds with other molecules. 2-Amino-5-methylpyridine can be obtained by reacting hydrochloric acid and xanthone in the presence of a base. The compound is highly reactive and has been shown to have antiinflammatory properties. This can be attributed to its ability to inhibit prostaglandin synthesis. 2-Amino-5-methylpyridine also has fluorescence properties that are sensitive to pH changes and can be used as a probe for metal ions. 2-Amino-5-methylpyridine is an organic compound that contains a methyl group, two nitrogen atoms, and one oxygen atom in its chemical structure. This molecule can form hydrogen bonds with other molecules due to its nitrogen atoms and oxygen atom,, 1603-41-4.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

The critical parameters of pyridine are pressure 6.70 MPa, temperature 620 K and volume 229 cm3·mol−1. 1603-41-4, formula is C6H8N2, Name is 2-Amino-5-methylpyridine. In the temperature range 340–426 °C its vapor pressure p can be described with the Antoine equation.. HPLC of Formula: 1603-41-4.

Guan, Wenjing;Ying, Ke;Yuan, Chengcheng;Hang, Jinlin;Liu, Chengkou;Huang, Xiangxing;Fang, Zheng;Guo, Kai research published 《 Catalyst- and oxidant-free electrooxidative site-selective [3/4 + 2] annulation to fused polycyclic heteroaromatics》, the research content is summarized as follows. A straightforward electrochem. oxidation [3 + 2] or [4 + 2] annulation of imidazo[1,2-a]pyridines with alkynes to heterocyclic aromatic compounds under metal- and exogenous oxidant-free conditions had been accomplished. Moreover, a possible mechanism had been proposed on the basis of radical-trapping, isotope-labeling, KIE and cyclic voltammetry experiments This green and sustainable methodol. features excellent regioselectivity, wide substrate adaptability and good functional group compatibility.

HPLC of Formula: 1603-41-4, 2-Amino-5-methylpyridine, also known as 2-Amino-5-methylpyridine, is a useful research compound. Its molecular formula is C6H8N2 and its molecular weight is 108.14 g/mol. The purity is usually 95%.
2-Amino-5-methylpyridine is a chemical compound that belongs to the group of methyl ketones. It has a nitrogen atom and an oxygen atom in its structure, which allows it to form hydrogen bonds with other molecules. 2-Amino-5-methylpyridine can be obtained by reacting hydrochloric acid and xanthone in the presence of a base. The compound is highly reactive and has been shown to have antiinflammatory properties. This can be attributed to its ability to inhibit prostaglandin synthesis. 2-Amino-5-methylpyridine also has fluorescence properties that are sensitive to pH changes and can be used as a probe for metal ions. 2-Amino-5-methylpyridine is an organic compound that contains a methyl group, two nitrogen atoms, and one oxygen atom in its chemical structure. This molecule can form hydrogen bonds with other molecules due to its nitrogen atoms and oxygen atom,, 1603-41-4.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

The critical parameters of pyridine are pressure 6.70 MPa, temperature 620 K and volume 229 cm3·mol−1. 1603-41-4, formula is C6H8N2, Name is 2-Amino-5-methylpyridine. In the temperature range 340–426 °C its vapor pressure p can be described with the Antoine equation.. Application In Synthesis of 1603-41-4.

Gui, Qing-Wen;Wang, Bin-Bin;Zhu, Sha;Li, Fu-Long;Zhu, Meng-Xue;Yi, Min;Yu, Jia-Ling;Wu, Zhi-Lin;He, Wei-Min research published 《 Four-component synthesis of 3-aminomethylated imidazoheterocycles in EtOH under catalyst-free, oxidant-free and mild conditions》, the research content is summarized as follows. With green ethanol as the sole solvent, 3-aminomethylated imidazoheterocycles I [R¹ = H, 6-Me, 7-Me, etc.; R² = Ph, 4-ClC₆H₄, 2-furanyl, etc.; R³ = Bn, n-Bu, CH₂CH₂CN, etc.; R⁴ = H, Me, i-Pr, etc.; R³R⁴ = CH₂(CH₂)₂CH₂, CH₂(CH₂)CH₂, CH₂CH₂OCH₂CH₂, R³ = R⁴ = Et, i-Pr] were synthesized via a four-component reaction of 2-aminopyridines with 2-bromoacetophenones dichloromethane and amines at ambient temperature under metal-free, oxidant-free and mild conditions.

Application In Synthesis of 1603-41-4, 2-Amino-5-methylpyridine, also known as 2-Amino-5-methylpyridine, is a useful research compound. Its molecular formula is C6H8N2 and its molecular weight is 108.14 g/mol. The purity is usually 95%.
2-Amino-5-methylpyridine is a chemical compound that belongs to the group of methyl ketones. It has a nitrogen atom and an oxygen atom in its structure, which allows it to form hydrogen bonds with other molecules. 2-Amino-5-methylpyridine can be obtained by reacting hydrochloric acid and xanthone in the presence of a base. The compound is highly reactive and has been shown to have antiinflammatory properties. This can be attributed to its ability to inhibit prostaglandin synthesis. 2-Amino-5-methylpyridine also has fluorescence properties that are sensitive to pH changes and can be used as a probe for metal ions. 2-Amino-5-methylpyridine is an organic compound that contains a methyl group, two nitrogen atoms, and one oxygen atom in its chemical structure. This molecule can form hydrogen bonds with other molecules due to its nitrogen atoms and oxygen atom,, 1603-41-4.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine has a conjugated system of six π electrons that are delocalized over the ring. 1603-41-4, formula is C6H8N2, Name is 2-Amino-5-methylpyridine. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. SDS of cas: 1603-41-4.

Guo, Lina;Su, Meiyun;Lv, Junliang;Liu, Wenjie;Wang, Shaohua research published 《 N-Iodosuccinimide-promoted Regioselective Selenylation of 4H-Pyrido-[1,2-a]-pyrimidin-4-ones with Diselenides at Room Temperature》, the research content is summarized as follows. A novel and efficient approach for the regioselective selenylation of 4H-pyrido-[1,2-a]-pyrimidin-4-ones with diselenides at room temperature was developed. This procedure was catalyzed by N-iodosuccinimide under metal-free conditions with a broad range of substrate scopes and affords C3 selenylation products in good to excellent yields. Furthermore, the sulfenylation with di-Ph disulfides and 4-methylbenzenethiol in this transformation was successful.

1603-41-4, 2-Amino-5-methylpyridine, also known as 2-Amino-5-methylpyridine, is a useful research compound. Its molecular formula is C6H8N2 and its molecular weight is 108.14 g/mol. The purity is usually 95%.
2-Amino-5-methylpyridine is a chemical compound that belongs to the group of methyl ketones. It has a nitrogen atom and an oxygen atom in its structure, which allows it to form hydrogen bonds with other molecules. 2-Amino-5-methylpyridine can be obtained by reacting hydrochloric acid and xanthone in the presence of a base. The compound is highly reactive and has been shown to have antiinflammatory properties. This can be attributed to its ability to inhibit prostaglandin synthesis. 2-Amino-5-methylpyridine also has fluorescence properties that are sensitive to pH changes and can be used as a probe for metal ions. 2-Amino-5-methylpyridine is an organic compound that contains a methyl group, two nitrogen atoms, and one oxygen atom in its chemical structure. This molecule can form hydrogen bonds with other molecules due to its nitrogen atoms and oxygen atom,, SDS of cas: 1603-41-4

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine is diamagnetic and has a diamagnetic susceptibility of −48.7 × 10−6 cm3·mol−1.The molecular electric dipole moment is 2.2 debyes. 1603-41-4, formula is C6H8N2, Name is 2-Amino-5-methylpyridine. TThe standard enthalpy of formation is 100.2 kJ·mol−1 in the liquid phase and 140.4 kJ·mol−1 in the gas phase. Recommanded Product: 2-Amino-5-methylpyridine.

Guchhait, Sankar K.;Saini, Meenu;Khivsara, Viren J.;Giri, Santosh K. research published 《 Annulation of Conjugated Azine-Imine with a Sulfoxonium Ylide in a Noncarbenoid Route to Synthesize Multisubstituted Imidazole-Fused Heterocycles》, the research content is summarized as follows. A new [4+1]-annulation of in situ generated heterocyclic azine-aldimines with β-keto sulfoxonium ylides has been developed. The reaction constructs N-fused imidazole rings I (X=Y= CH,N; Ar¹= 4-ClC₆H₄, 4-BrC₆H₄, 4-CNC₆H₄, etc.; Ar² = 4-ClC₆H₄, 4-MeOC₆H₄, 4-FC₆H₄, etc.). In the reaction, the ylides play a dual-functional role of a nucleophilic 1,1-dipolar one-carbon synthon and a source of an internal oxidant, DMSO, that promotes in situ dehydrogenation to product scaffolds. The method enables access to imidazo-pyridine, pyrazine, and pyrimidine heteroaromatics

Recommanded Product: 2-Amino-5-methylpyridine, 2-Amino-5-methylpyridine, also known as 2-Amino-5-methylpyridine, is a useful research compound. Its molecular formula is C6H8N2 and its molecular weight is 108.14 g/mol. The purity is usually 95%.
2-Amino-5-methylpyridine is a chemical compound that belongs to the group of methyl ketones. It has a nitrogen atom and an oxygen atom in its structure, which allows it to form hydrogen bonds with other molecules. 2-Amino-5-methylpyridine can be obtained by reacting hydrochloric acid and xanthone in the presence of a base. The compound is highly reactive and has been shown to have antiinflammatory properties. This can be attributed to its ability to inhibit prostaglandin synthesis. 2-Amino-5-methylpyridine also has fluorescence properties that are sensitive to pH changes and can be used as a probe for metal ions. 2-Amino-5-methylpyridine is an organic compound that contains a methyl group, two nitrogen atoms, and one oxygen atom in its chemical structure. This molecule can form hydrogen bonds with other molecules due to its nitrogen atoms and oxygen atom,, 1603-41-4.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine is diamagnetic and has a diamagnetic susceptibility of −48.7 × 10−6 cm3·mol−1.The molecular electric dipole moment is 2.2 debyes. 1603-41-4, formula is C6H8N2, Name is 2-Amino-5-methylpyridine. TThe standard enthalpy of formation is 100.2 kJ·mol−1 in the liquid phase and 140.4 kJ·mol−1 in the gas phase. HPLC of Formula: 1603-41-4.

Gaikwad, Sanjay Subhas;Thorat, Nitin Madhu;Patil, Limbraj Rajaram research published 《 Sonication Assisted One-Pot Synthesis of Substituted Imidazopyridine from Styrene in Water》, the research content is summarized as follows. The present protocol was a simple and eco-friendly approach for the one-pot procedure for the synthesis of substituted imidazopyridines I [R = H, t-Bu. F, etc.; R¹ = H, Me, Br; R² = H, Me] ranging from important feedstock’s like styrene promoted by NBS. Through sonicator and microwave com. available styrene with NBS in water followed by reaction with 2-aminopyridines afforded important heterocyclic scaffolds in an one-pot procedure.

HPLC of Formula: 1603-41-4, 2-Amino-5-methylpyridine, also known as 2-Amino-5-methylpyridine, is a useful research compound. Its molecular formula is C6H8N2 and its molecular weight is 108.14 g/mol. The purity is usually 95%.
2-Amino-5-methylpyridine is a chemical compound that belongs to the group of methyl ketones. It has a nitrogen atom and an oxygen atom in its structure, which allows it to form hydrogen bonds with other molecules. 2-Amino-5-methylpyridine can be obtained by reacting hydrochloric acid and xanthone in the presence of a base. The compound is highly reactive and has been shown to have antiinflammatory properties. This can be attributed to its ability to inhibit prostaglandin synthesis. 2-Amino-5-methylpyridine also has fluorescence properties that are sensitive to pH changes and can be used as a probe for metal ions. 2-Amino-5-methylpyridine is an organic compound that contains a methyl group, two nitrogen atoms, and one oxygen atom in its chemical structure. This molecule can form hydrogen bonds with other molecules due to its nitrogen atoms and oxygen atom,, 1603-41-4.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem