CAS Registry Number

CAS 89-25-8 — 1-Phenyl-3-methyl-5-pyrazolone

1-Phenyl-3-methyl-5-pyrazolone (PMP) is a key organic compound primarily used as a reagent in analytical chemistry for derivatizing carbonyl compounds in GC/MS and HPLC analysis, as well as in the synthesis of pharmaceuticals and dyes. It appears as a white to pale yellow crystalline powder with a CAS number of 89-25-8, molecular formula C10H10N2O, and a molecular weight of 174.20 g/mol. Store at ambient temperatures. The product carries a signal word of Warning for safety handling. Molekula supplies 1-Phenyl-3-methyl-5-pyrazolone from research to bulk quantities with full documentation and ISO 9001:2015 traceability.