CAS Registry Number

CAS 2605-67-6 — Methyl (triphenylphosphoranylidene)acetate

Methyl (triphenylphosphoranylidene)acetate is a phosphorus ylide widely used in organic synthesis, particularly for Wittig reactions to form alkenes from carbonyl compounds. This reagent is a pale yellow crystalline solid with high reactivity, enabling efficient olefination in research and industrial applications. CAS 2605-67-6, molecular formula C21H19O2P, molecular weight 334.35 g/mol. Store at 2–8°C under inert gas to prevent hydrolysis. Signal word: Warning (may cause skin/eye irritation). Molekula supplies Methyl (triphenylphosphoranylidene)acetate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.