Agent Name

Methyl methanethiosulfonate

CAS Number

2949-92-0

Formula

C2-H6-O2-S2

Major Category

Other Classes

Synonyms

Methyl methanesulfonothioate; Methyl methanethiolsulfonate; S-Methyl methanesulfonothioate; S-Methyl methanethiosulfonate; Methanesulfonic acid, thio-, S-methyl ester; Methanesulfonothioic acid, S-methyl ester; S-Methyl methanethiosulphonate; [ChemIDplus] MMTS; S-Methyl thiomethanesulfonate; [Sigma-Aldrich MSDS]

Category

Sulfur Compounds

Description

Clear yellow liquid with a stench; [Sigma-Aldrich MSDS]

Sources/Uses

"MMTS (methyl methanethiosulfonate) is a small compound that reversibly blocks cysteines and other sulfhydryl groups, enabling the study of enzyme activation and other protein functions." [Pierce Protein Biology Products]

Comments

Intraperitoneal LD50 (mouse) = 9.11 mg/kg; [RTECS] An irritant that may cause severe eye irritation; [Sigma-Aldrich MSDS] See "2-Hydroxypropyl methanethiosulfonate." See "Methyl trifluoromethanesulfonate" and "Ethyl methanesulfonate."

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