(R)-2-Hydroxybutyric acid
[CAS# 20016-85-7]

Identification

• Name: (R)-2-Hydroxybutyric acid
• Synonyms: (R)-alpha-Hydroxybutyric acid; D-(-)-alpha-Hydroxybutyric acid; D-2-Hydroxybutyric acid; D-alpha-Hydroxybutyric acid
• Molecular Formula: C₄H₈O₃
• Molecular Weight: 104.10
• CAS Registry Number: 20016-85-7
• EC Number: 627-239-9

Properties

• Solubility: Freely soluble (356 g/L) (25 ºC), Calc.^*
• Density: 1.195±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 55-55.5 ºC^**
• Boiling point: 238.3±13.0 ºC (760 Torr), Calc.^*
• Flash point: 112.2±16.3 ºC, Calc.^*

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

^** Fredga, A.; Arkiv foer Kemi, Mineralogi och Geologi 1943, V16A(No. 21), P10 pp..

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Serious eye damage	Eye Dam.	1	H318
Specific target organ toxicity - single exposure	STOT SE	3	H335
Skin irritation	Skin Irrit.	2	H315