Skip to Content
Merck
CN

Key Documents

View All Documentation

537055

Isobutyric acid

99%

Synonym(s):

2-Methylpropionic acid

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
(CH3)2CHCO2H
CAS Number:
79-31-2
Molecular Weight:
88.11
EC Number:
201-195-7
UNSPSC Code:
12352100
MDL number:
MFCD00002658
Beilstein/REAXYS Number:
635770
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

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

Still not finding the right product?

Explore all of our products under Isobutyric acid

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

131.0 °F - closed cup

flash_point_c

55 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

新产品

This item has

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
00714KE
07710PB
01821LI
11011CB
04102AC

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.

Search for a COA

Already Own This Product?

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

Visit the Document Library