CAS Registry Number

CAS 77-78-1 — Dimethyl sulfate

Dimethyl sulfate is a highly reactive alkylating agent widely used in organic synthesis, pharmaceuticals, and analytical chemistry for methylation reactions. It serves as a key reagent in the preparation of methyl esters, amines, and other methylated compounds, though its use requires strict handling due to its toxicity and flammability. Dimethyl sulfate (CAS 77-78-1) has the molecular formula (CH3O)2SO2 with a molecular weight of 126.13. It is stored at ambient temperatures but requires careful handling due to its hazardous nature, including a **Danger** signal word for toxicity and corrosivity. Molekula supplies dimethyl sulfate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.