Methyl Fluorosulfonate (stabilized with KF) [for Esterification] , >98.0%(T) , 421-20-5

CAS NO.：421-20-5

Empirical Formula: CH3FO3S

Molecular Weight: 114.1

MDL number: MFCD00014721

EINECS: 207-004-3

PRODUCT Properties

• Melting point: -95°
• Boiling point: 93 °C
• Density: 1.45
• refractive index: nD20 1.3326
• Flash point: 10℃
• form: liquid
• Merck: 6075
• CAS DataBase Reference: 421-20-5(CAS DataBase Reference)
• EPA Substance Registry System: Fluorosulfuric acid, methyl ester (421-20-5)

Description and Uses

In organic synthesis as methylating agent.

Safety

• Symbol(GHS): GHS05,GHS06,GHS02
• Signal word: Danger
• Hazard statements: H330-H301+H311-H315-H318-H225
• Precautionary statements: P501-P260-P270-P240-P210-P233-P243-P241-P242-P271-P264-P280-P284-P370+P378-P361+P364-P303+P361+P353-P332+P313-P301+P310+P330-P304+P340+P310-P305+P351+P338+P310-P403+P233-P403+P235-P405
• Hazard Codes: C
• Risk Statements: 34
• Safety Statements: 26-36/37/39
• RIDADR: 3265
• RTECS: LP0720000
• Hazard Note: Corrosive
• Hazardous Substances Data: 421-20-5(Hazardous Substances Data)
• Toxicity: LD50 orally in mice: <112 mg/kg; LC50 1 hr for rats: 5-6 ppm (Hite)