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Weifang Qiyi Chemical Co., Ltd.
Weifang Qiyi Chemical Co., Ltd.
18 YRS
Shandong, China
Main Products:
Isobutyric Acid
Shandong, China
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Isobutyric Acid / CAS 79-31-2
OVERVIEW
Uses
Packaging
200 KG/Plastic Drum
Lead Time
14-30 days
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DESCRIPTION
Isobutyric acid
Chinese name: 异丁酸
Synonymous: 2-Methyl-Propionic Acid；Alpha-Isobutyric Acid
CAS RN: 79-31-2
EINECS: 201-195-7
Molecular formula: C4H8O2
Molecular weight: 88.10632
Structure： 
Physicochemical properties：
Appearance: Colorless oily liquid with strong pungent smell.
Melting point: -47℃
Boiling point: 154.5℃
Relative density: 0.949 g/cm3
Refractive index: 1.3930
Flash point: 55℃
Solubility: soluble in ethanol, ether and chloroform.
Application: used as photoinitiator, isobutyryl chloride, isobutyrate ester, etc.
Typical Properties
Summary
Isobutyric acid is a branched fatty acid comprising propanoic acid carrying a methyl branch at C-2. It has a role as a volatile oil component, a plant metabolite and a Daphnia magna metabolite. It is a branched-chain saturated fatty acid, a methyl-branched fatty acid and a fatty acid 4:0. It is a conjugate acid of an isobutyrate.
CAS No.
79-31-2
Formula
C4H8O2
Molecular Mass
88.10510
Exact Mass
88.05240
PSA
37.30000
Logp
0.72700
IUPAC
2-methylpropanoic acid
SMILES
CC(C)C(=O)O
Attribute classification
Matter Classification
organic
Category
API & Intermediate > Pharmaceutical Intermediates
Food(Feed) Additives > Food Flavors And Fragrances
Flavors and Fragrances > Synthetic Spices
Food(Feed) Additives > Food Flavors And Fragrances
Flavors and Fragrances > Synthetic Spices
Chemical and Physical Properties
Melting Point
-47 °C
Density
0.95 g/mL at 25 °C(lit.)
Boiling Point
153-154 °C(lit.)
Flash Point
132 °F
Appearance
Isobutyric acid appears as a colorless liquid with a light odor of rancid butter.
Export information
HS Code
29156000
Export Rebate
13%
UN No.
UN 2529
DG-Class
3
Risk Code
R21/22
Safety Label
Xn
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