highly reactive methylating reagent

Dimethyl sulfate (Methyl sulfate), 99% Methylating Agent DMS Dimethyl sulfate (DMS) is a high-purity, highly reactive methylating agent widely employed in the synthesis of pharmaceutical, agrochemicals, dyes, and fine chemicals. Supplied as a clear, colorless to pale yellow liquid with a minimum assay of 99%, it delivers exceptional methylation efficiency for oxygen, nitrogen, and sulfur nucleophiles. Its consistent performance, combined with rigorous quality control and

O-Methylisourea hemisulfate (Methylisourea hemisulfate), 98% CAS 52328-05-9 Chemical Intermediate Product Overview O-Methylisourea hemisulfate (CAS 52328-05-9), supplied as the hemisulfate salt for enhanced stability and ease of handling, is a high-purity guanidine derivative that functions as a versatile methylating agent and critical building block in heterocyclic synthesis. This white crystalline powder with a minimum assay of 98% is widely employed in pharmaceutical and