ChemicalBook Product Catalog Chemical Reagents Organic reagents fatty acid (S)-(+)-2-Methylbutyric acid

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

(S)-(+)-2-Methylbutyric acid Basic information
Product Name:(S)-(+)-2-Methylbutyric acid
Synonyms:RARECHEM AL BO 1316;(S)-(+)-2-METHYLBUTYRIC ACID;(S)-(+)-2-Methylbutyric acid 98%;(S)-(+)-2-Methylbutyric acid,98%;Butanoic acid, 2-methyl-, (2S)-;(S)-2-Methylbutanoic acid
CAS:1730-91-2
MF:C5H10O2
MW:102.13
EINECS:
Product Categories:Carboxylic Acids;Chiral Building Blocks;Organic Building Blocks
Mol File:1730-91-2.mol
(S)-(+)-2-Methylbutyric acid Structure
(S)-(+)-2-Methylbutyric acid Chemical Properties
Melting point -55°C
alpha 19 º (c=neat)
Boiling point 78 °C/15 mmHg (lit.)
density 0.938 g/mL at 25 °C (lit.)
FEMA 2695 | 2-METHYLBUTYRIC ACID
refractive index n20/D 1.406(lit.)
Fp 165 °F
storage temp. 2-8°C
solubility Chloroform (Sparingly), Methanol (Sparingly)
form Liquid
pka4.80±0.10(Predicted)
color Clear colorless
Odorfruity sweet
optical activity[α]20/D +19°, neat
BRN 1720485
Stability:Hygroscopic
InChIKeyWLAMNBDJUVNPJU-BYPYZUCNSA-N
LogP1.051 (est)
CAS DataBase Reference1730-91-2(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 Information
ProviderLanguage
ACROS English
SigmaAldrich English
ALFA English
(S)-(+)-2-Methylbutyric acid Usage And Synthesis
Chemical Propertiesclear 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.
DefinitionChEBI: The (S)-enantiomer of 2-methylbutanoic acid.
Purification MethodsPurify 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.]
α,α-dimethylbutyric acid 1-BROMO-CYCLOBUTANECARBOXYLIC ACID ETHYL ESTER Hydrocortisone-17-butyrate 2-Hydroxy-2-methylbutyric acid Ethyl 2-(Chlorosulfonyl)acetate Ascoric Acid 2-Chloroamino-3-methylbutyric acid METHYL O-METHYLPODOCARPATE Ethyl cyclobutanecarboxylate 3-Methylbutyric acid 2-methyl-5-(1-methylethenyl)-2-cyclohexen-1-yl ester D-2-Methylbutyl 2-methylbutyrate Benzyldimethylcarbinyl butyrate (S)-5-Hydroxymethyldihydrofuran-2-one 3-Methylbutyric acid [[9R,10R,(+)]-10-acetoxy-9,10-dihydro-8,8-dimethyl-2-oxo-2H,8H-benzo[1,2-b:3,4-b']dipyran-9-yl] ester 1-(4-METHOXYPHENYL)-1-CYCLOPENTANECARBOXYLIC ACID Butanoic acid, 3-oxo-2-(phenylmethylene)-, methyl ester [R,(+)]-2-Mercapto-3-methylbutyric acid sodium salt 3-METHYLENECYCLOPROPANE-TRANS-1,2-DICARBOXYLIC ACID
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