Pharmaceutical intermediates specializing in customization
Category：Pharmaceutical Materials
Introduction
On October 27, 017, the World Health Organization’s International Agency for Research on Cancer (IARC) published a preliminary collation of the list of carcinogens for reference, and pyridine is in the list of carcinogens in category 2B. Pyridine The structure of pyridine-based pharmaceutical intermediates is very similar to benzene, and the carbon-carbon bond length in the pyridine molecule, measured by recent physical methods, is 139 pm, which is between the C-N single bond (147 pm) and the C=N double bond (128 pm), and its carbon-carbon and carbon-nitrogen bond lengths are also similar in numerical value, with a bond angle of about 120°, which suggests that the bond on the pyridine ring is more averaged, but not as complete as that of benzene.,Disclaimer: The above content is for reference and communication only among industry insiders, and does not guarantee its accuracy or completeness. According to relevant laws and regulations and the regulations of this website, units or individuals who purchase related items should obtain valid qualifications and qualification conditions.
