CAS Registry Number

CAS 2654-57-1 — Phenidone B (1-Phenyl-4-methyl-3-pyrazolidone)

Phenidone B (1-Phenyl-4-methyl-3-pyrazolidone) is a chemical compound widely used as a photographic developer and in various industrial applications, including as a polymerization inhibitor and antioxidant. It is also employed in analytical chemistry for its reducing properties. This white to off-white crystalline powder has a CAS number of 2654-57-1, a molecular formula of C10H12N2O, and a molecular weight of 176.22. It should be stored at ambient conditions and handled with caution, as it carries a "Danger" signal word. Molekula supplies Phenidone B from research to bulk quantities with full documentation and ISO 9001:2015 traceability.