Appelhans, Dietmar published the artcileOligosaccharide-modified poly(propyleneimine) dendrimers: synthesis, structure determination, and CuII complexation, SDS of cas: 971-66-4, the publication is Macromolecular Bioscience (2007), 7(3), 373-383, database is CAplus and MEDLINE.
The multiple application of reductive amination on primary amino groups of first and second generation poly(propyleneimine) dendrimers is used as a one-pot approach to introduce twice the amount of the oligosaccharide units as surface groups, compared to initially present amino groups in the first and second generation dendrimers. This was proven by 1H NMR, MALDI-TOF-MS, and LILBID-MS anal. The size of these dendrimers was determined by the hydrodynamic radius using pulsed field gradient NMR and dynamic light scattering. Mol. modeling confirmed the presence of dense-shell dendrimers. These dendrimers exhibit a generation dependent CuII/dendrimer ratio in an aqueous environment, highlighting these materials as possible metal-carrier systems with a well-defined oligosaccharide protection shell for application in a biol. environment.
Macromolecular Bioscience published new progress about 971-66-4. 971-66-4 belongs to pyridine-derivatives, auxiliary class Pyridine,Benzene, name is Triphenyl(pyridin-1-ium-1-yl)borate, and the molecular formula is C23H20BN, SDS of cas: 971-66-4.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem