Skip to Content
Merck
CN
All Photos(1)

Key Documents

Safety Information

240168

Sigma-Aldrich

Isobutyric acid

≥99%

Synonym(s):

2-Methylpropionic acid

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
(CH3)2CHCO2H
CAS Number:
Molecular Weight:
88.11
Beilstein:
635770
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:

vapor density

3.04 (vs air)

vapor pressure

1.5 mmHg ( 20 °C)

Assay

≥99%

autoignition temp.

824 °F

expl. lim.

10 %

refractive index

n20/D 1.393 (lit.)

bp

153-154 °C (lit.)

mp

−47 °C (lit.)

density

0.95 g/mL at 25 °C (lit.)

SMILES string

CC(C)C(O)=O

InChI

1S/C4H8O2/c1-3(2)4(5)6/h3H,1-2H3,(H,5,6)

InChI key

KQNPFQTWMSNSAP-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

replaced by

Product No.
Description
Pricing

Regulatory Information

新产品

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service