alpha-Hydroxybutyric acid
[CAS# 600-15-7]

Identification

• Name: alpha-Hydroxybutyric acid
• Synonyms: DL-2-Hydroxybutyric acid; DL-alpha-Hydroxybutyric acid; NSC 6495
• Molecular Formula: C₄H₈O₃
• Molecular Weight: 104.10
• CAS Registry Number: 600-15-7
• EC Number: 209-985-3

Properties

• Solubility: Freely soluble (356 g/L) (25 ºC), Calc.^*
• Density: 1.195±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 78-79 ºC^**
• Boiling point: 138-141 ºC (11 Torr)^***
• Refractive index: 1.4298 (589.3 nm 20 ºC)^****
• Flash point: 112.2±16.3 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2014 ACD/Labs)

^** Buchi, G.; Journal of the American Chemical Society 1959, V81, P1968-80.

^*** Gilman, Henry; Journal of Organic Chemistry 1943, V8, P224-9.

^**** Beckwith, A. L. J.; Australian Journal of Chemistry 1960, V13, P244-55.

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.	2	H319
Eye irritation	Eye Irrit.	2A	H319