CAS mumber
79-31-2

Molecular formula
C4H8O2

SMILES
CC(C)C(=O)O

Retention indicies (RI)

• Carbowax: 1555.86

XLogP3-AA
0.8 Well soluble in MMB, TEC, DEP

Molecular weight
88.11 g/mol

Melting points

• -51 °F (USCG, 1999)
• -46 °C
• -47 °C
• -46 °C
• -47 °C

Boiling points

• 309 °F at 760 mmHg (USCG, 1999)
• 154.4 °C
• 152-155 °C at 760 mm Hg
• 152-155 °C

Flash points

• 132 °F (NFPA, 2010)
• 77 °C
• 170 °F OPEN CUP
• 132 °F (56 °C) (closed cup)
• 56 °C c.c.

Solubilities

• 167000 mg/L (at 20 °C)
• Slightly soluble in carbon tetrachloride
• Sol in 6 parts of water; miscible with alcohol, chloroform, and ether.
• In water, 1.67X10+5 mg/L at 20 °C
• 167 mg/mL at 20 °C
• Solubility in water, g/100ml at 20 °C: 20
• miscible with alcohol, most fixed oils, glycerine and propylene glycol; insoluble in water

• ISOBUTYRIC ACID
• 2-Methylpropanoic acid
• 79-31-2
• Isobutanoic acid
• 2-Methylpropionic acid
• Dimethylacetic acid
• Iso-butyric acid
• Isopropylformic acid
• Propanoic acid, 2-methyl-
• Isobutyrate
• Cenex RP b2
• alpha-Methylpropanoic acid
• alpha-Methylpropionic acid
• Acetic acid, dimethyl-
• Propionic acid, 2-methyl-
• Isobutanoate
• Isobutyric acid (natural)
• Tenox IBP-2
• 2-METHYL-PROPIONIC ACID
• Kyselina isomaselna
• Isobuttersaeure
• iso-C3H7COOH
• i-Butyric acid
• Caswell No. 503AA
• FEMA No. 2222
• Tenox IBP-2 Grain Pr.
• alpha-isobutyric acid
• Kyselina isomaselna [Czech]
• NSC 62780
• 2,2-dimethylacetic acid
• HSDB 5228
• Methylpropanoic acid, 2-
• EINECS 201-195-7
• .alpha.-Methylpropanoic acid
• methylpropanoic acid
• MFCD00002658
• EPA Pesticide Chemical Code 101502
• UNII-8LL210O1U0
• BRN 0635770
• 2-Methylpropionsaeure
• DTXSID4021636
• CHEBI:16135
• Isobutyric-d6 Acid
• AI3-24260
• 8LL210O1U0
• 2-methyl-propanoic acid
• NSC-62780
• ISOPROPYLFORMIC-ACID
• .alpha.-Methylpropionic acid
• DTXCID601636
• EC 201-195-7
• 4-02-00-00843 (Beilstein Handbook Reference)
• i-butyrate
• iso-Butyrate
• 2-Methylpropionate
• Isobutyric acid [UN2529] [Flammable liquid]
• ALQ
• 2-methpropanoic acid
• UN2529
• Dimethylacetate
• Isobuttersaure
• Isopropylformate
• Acido isobutirico
• a-Methylpropanoate
• a-Methylpropionate
• Acide isobutyrique
• 1iup
• methylpropionic acid
• alpha-Methylpropanoate
• alpha-Methylpropionate
• Tenox EBP 2
• Tenox IBP 2
• 2-Methyl-propionsaure
• a-Methylpropanoic acid
• a-Methylpropionic acid
• Isobutyric acid, 99%
• 2-methyl propanoic acid
• 2-Propanecarboxylic acid
• isopropyl carboxylic acid
• FEMA Number: 2222
• bmse000439
• ISOBUTYRIC ACID [MI]
• ISOBUTYRIC ACID [FCC]
• WLN: QVY1&1
• ISOBUTYRIC ACID [FHFI]
• CHEMBL108778
• GTPL1060
• PROPANE-2-CARBOXYLIC ACID
• BCP34521
• EBA05408
• NSC62780
• STR03465
• Isobutyric acid, analytical standard
• Tox21_201207
• LMFA01020071
• STL146521
• 2-METHYLPROPANOIC ACID [HSDB]
• AKOS000118733
• Isobutyric acid, >=99%, FCC, FG
• DB02531
• FI46255
• UN 2529
• CAS-79-31-2
• NCGC00248957-01
• NCGC00258759-01
• I0103
• Isobutyric acid, puriss. p.a., >=99.5%
• NS00008728
• EN300-19272
• Isobutyric acid, natural, >=99%, FCC, FG
• C02632
• Q415062
• F2191-0099
• Z104473380
• Isobutyric acid, certified reference material, TraceCERT(R)
• 2-Methyl-d3-propionic-3,3,3-d3 acid;[2H6]-2-Methylpropionic acid
• InChI=1/C4H8O2/c1-3(2)4(5)6/h3H,1-2H3,(H,5,6
• 201-195-7