Acetyl methanesulfonate
[CAS# 5539-53-7]

Identification

• Name: Acetyl methanesulfonate
• Synonyms: Methanesulfonyl acetate; NSC 158252
• Molecular Formula: C₃H₆O₄S
• Molecular Weight: 138.14
• CAS Registry Number: 5539-53-7
• EC Number: 883-024-1

Properties

• Solubility: Freely soluble (110 g/L) (25 °C), Calc.^*
• Density: 1.346±0.06 g/cm³ (20 °C 760 Torr), Calc.^*
• Boiling point: 66 °C (2.03 Torr)^**
• Flash point: 76.0±22.6 °C, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2015 ACD/Labs)

^** Blaschette, Armand

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Eye irritation	Eye Irrit.	2A	H319
Acute toxicity	Acute Tox.	4	H302
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335
Flammable liquids	Flam. Liq.	4	H227