CAS Registry Number

CAS 31469-15-5 — Methyl trimethylsilyl dimethylketene acetal

Methyl trimethylsilyl dimethylketene acetal is a silyl-protected ketene acetal used in organic synthesis for carbon-carbon bond formation, particularly in aldol-type reactions and as a masked ketone equivalent. It is a colorless to pale yellow liquid, stable under inert conditions. CAS: 31469-15-5, molecular formula: (CH3)2C=C(OCH3)OSi(CH3)3, molecular weight: 174.31 g/mol. Store at 2 to 8 °C. Warning signal word applies. Molekula supplies Methyl trimethylsilyl dimethylketene acetal from research to bulk quantities with full documentation and ISO 9001:2015 traceability.