S-Methyl methanethiosulfonate

SIAL/64306 - purum, ≥98.0% (GC)

Synonym: S-Methyl thiomethanesulfonate; MMTS

CAS Number: 2949-92-0
Empirical Formula (Hill Notation): C₂H₆O₂S₂
Molecular Weight: 126.20
EC Number: 220-970-0
MDL Number: MFCD00007565
Linear Formula: CH₃SO₂SCH₃
Product Type: Chemical

Catalog Number	PKG Qty.	Price	Quantity


45-64306-1ML	1 mL	$45.70 1/EA		Add To Favorites
45-64306-10ML	10 mL	$217.00 1/EA		Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

assay	≥98.0% (GC)
bp	69-71 °C/0.4 mmHg (lit.)
density	1.337 g/mL at 20 °C
	1.337 g/mL at 25 °C (lit.)
grade	purum
InChI	1S/C2H6O2S2/c1-5-6(2,3)4/h1-2H3
InChI key	XYONNSVDNIRXKZ-UHFFFAOYSA-N
Quality Level	200
refractive index	n20/D 1.513
	n20/D 1.513 (lit.)
SMILES string	CSS(C)(=O)=O
solubility	chloroform: 750mg + 5 ml Chloroform mg/mL, colorless to light greenish-yellow
storage temp.	2-8°C

Application:	Modification of Thiol Enzymes: S-methyl methanethiosulfonate (MMTS) offers a unique method for the modification of thiol enzymes and redox-regulated proteins, providing potential applications in biochemical research focused on enzyme regulation and redox biology (Makarov et al., 2019 ). Sensor Development for Protease Activity: S-methyl methanethiosulfonate is used as a blocking reagent on the structural transitions of papain-like cysteine proteases, which supports its utility in sensor development, allowing for the detection and analysis of protease activity in various biological processes (Markovic et al., 2023 ). Agricultural Pathogen Control: Research evaluating S-methyl methanethiosulfonate as a late blight inhibitor highlights its potential as a broad-range toxin against plant pathogens, suggesting applications in agriculture for the management of crop diseases (Joller et al., 2020 ).
Caution:	may discolor to yellow on storage
Other Notes:	Methylsulfenylating agent with many applications; For the α-methylsulfenylation of cyclic ketones; Methyl disulfides from thiols; selective, reversible inactivation of enzymes

Hazard Codes	Xi
Risk Statements	36
Safety Statements	26
RIDADR	UN 3334
WGK Germany	WGK 2
Flash Point(F)	188.6 °F - closed cup
Flash Point(C)	87 °C - closed cup

Purity	≥98.0% (GC)
bp	69-71 °C/0.4 mmHg (lit.)
Density	1.337 g/mL at 20 °C; 1.337 g/mL at 25 °C (lit.)
Refractive Index	n20/D 1.513 (lit.); n20/D 1.513
Storage Temp.	2-8°C
UNSPSC	12352100

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