Benzenesulfinic acid methyl ester
[CAS# 670-98-4]

Identification

• Classification: Organic raw materials >> Inorganic acid ester
• Name: Benzenesulfinic acid methyl ester
• Synonyms: Methyl benzenesulfinate; Methyl phenylsulfinate
• Molecular Formula: C₇H₈O₂S
• Molecular Weight: 156.20
• CAS Registry Number: 670-98-4
• EC Number: 675-466-7

Properties

• Solubility: Slightly soluble (4.2 g/L) (25 ºC), Calc.^*
• Density: 1.26±0.1 g/cm³ (20 ºC 760 Torr), Calc.^*
• Boiling point: 83-84 ºC (0.1 Torr)^**
• Refractive index: 1.5410-1.5428 (589.3 nm 25 ºC)^***
• Flash point: 111.2±22.6 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2017 ACD/Labs)

^** Drabowicz, Jozef; Chemistry Letters 1981, (12), P1753-4.

^*** Field, Lamar; Organic Syntheses 1966, V46, P62-5.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Specific target organ toxicity - single exposure	STOT SE	3	H335
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319
Flammable liquids	Flam. Liq.	3	H226