CAS Registry Number

CAS 4897-25-0 — 5-Chloro-1-methyl-4-nitroimidazole

5-Chloro-1-methyl-4-nitroimidazole is a nitroimidazole derivative primarily used as an intermediate in pharmaceutical synthesis, particularly for the production of antiprotozoal and antibacterial drugs. It appears as a pale yellow to white crystalline solid with a CAS number of 4897-25-0, molecular formula C4H4ClN3O2, and a molecular weight of 161.5465 g/mol. It is stable at ambient storage conditions but requires careful handling due to its moderate toxicity, as indicated by the signal word "Warning." Molekula supplies 5-Chloro-1-methyl-4-nitroimidazole from research to bulk quantities with full documentation and ISO 9001:2015 traceability.