1675244-99-1: Cefazolin EP Impurity I
N-Methyl-N’-nitrosopipeazine (CAS No: 30533-08-5) is known to be a potent carcinogen to various animal species, and man is exposed to some of them, no epidemiological investigations or case reports have so far given evidence that they have actually induced cancer in man and there is a strong possibility that they are hazardous to man.
2-[Carboxy[(1H-tetrazol-1-ylacetyl)amino]methyl]-5-[[(5-methyl-1, 3, 4-thia diazol-2-yl)sulfanyl]methyl]-5, 6-dihydro-2H-1, 3-thiazine-4-carboxylic acid
Sci-Hub, Isolation and Characterisation of Degradation Impurities in the Cefazolin Sodium Drug Substance, 10.3797/scipharm.1304-14. (2013). Retrieved January 11, 2022, from Sci-hub.ee website: https://sci-hub.ee/10.3797/scipharm.1304-14