(±)-2-Methylbutyrolactone
[CAS# 1679-47-6]

Identification

• Classification: Chemical reagent >> Organic reagent >> Ester >> Lactone compound
• Name: (±)-2-Methylbutyrolactone
• Synonyms: (±)-Dihydro-3-methyl-2(3H)-furanone; (±)-alpha-Methyl-gamma-butyrolactone; 2-Methyl-4-butanolide; 2-Methyl-gamma-butyrolactone; 2-Methylbutanolide; 2-Methylbutyrolactone; 3-Methyl-2-oxooxolane; 3-Methyldihydrofuran-2(3H)-one; 3-Methyldihydrofuran-2-one; 3-Methyltetrahydrofuran-2-one; 4-Hydroxy-2-methylbutanoic acid lactone; 4-Hydroxy-2-methylbutyric acid lactone; Dihydro-3-methyl-2(3H)-furanone; NSC 102837; alpha-Methyl-gamma-butyrolactone; alpha-Methylbutyrolactone
• Molecular Formula: C₅H₈O₂
• Molecular Weight: 100.12
• CAS Registry Number: 1679-47-6
• EC Number: 216-846-0

Properties

• Solubility: Soluble (35 g/L) (25 °C), Calc.^*
• Density: 1.040±0.06 g/cm³ (20 °C 760 Torr), Calc.^*
• Boiling point: 201-202 °C^**
• Refractive index: 1.4332 (589.3 nm 20 °C)^***
• Flash point: 75.0±15.9 °C, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2013 ACD/Labs)

^** Stepanov, F. N.

^*** Falbe, Juergen

Safety Data

Hazard Classification

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