(S)-(+)-2-Methylbutyric acid Chemical Properties

Melting point:

-55°C

Boiling point:

78 °C/15 mmHg (lit.)

alpha 

19 º (c=neat)

Density 

0.938 g/mL at 25 °C (lit.)

refractive index 

n20/D 1.406(lit.)

FEMA 

2695 | 2-METHYLBUTYRIC ACID

Flash point:

165 °F

storage temp. 

2-8°C

solubility 

Chloroform (Sparingly), Methanol (Sparingly)

form 

Liquid

pka

4.80±0.10(Predicted)

color 

Clear colorless

Odor

fruity sweet

optical activity

[α]20/D +19°, neat

BRN 

1720485

Stability:

Hygroscopic

InChIKey

WLAMNBDJUVNPJU-BYPYZUCNSA-N

LogP

1.051 (est)

CAS DataBase Reference

1730-91-2(CAS DataBase Reference)

Safety Information

Hazard Codes 

C

Risk Statements 

34-21/22

Safety Statements 

26-36/37/39-45

RIDADR 

UN 3265 8/PG 2

WGK Germany 

3

F 

13

HS Code 

29159000

MSDS

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• Language:English Provider:ACROS
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(S)-(+)-2-Methylbutyric acid Usage And Synthesis

Chemical Properties

clear colorless liquid

Uses

(S)-(+)-2-Methylbutyric acid may be used in the preparation of the stereoisomers of (R)-lavandulyl (S)-2-methylbutanoate and (R)-maconelliyl (S)-2-methylbutanoate, which are female sex pheromones found in pink hibiscus mealybug.

Uses

(S)-(+)-2-Methylbutyric Acid is a chiral starting reagent used in various synthetic preparations.

Definition

ChEBI: The (S)-enantiomer of 2-methylbutanoic acid.

Purification Methods

Purify the acid by distilling it in vacuo [Sax & Bergmann J Am Chem Soc 77 1910 1955, Doering & Aschner J Am Chem Soc 75 393 1953 ]. The methyl ester is formed by addition of diazomethane and has b 112-115o/760mm, [] D +21.1o (c 1.7, MeOH). [Beilstein 2 IV 888.]

(S)-(+)-2-Methylbutyric acid(1730-91-2)Related Product Information

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