Skip to Content
MilliporeSigma
All Photos(1)

Documents

8.00820

Sigma-Aldrich

Isopentanoic acid

for synthesis

Synonym(s):

Isopentanoic acid, 3-Methylbutyric acid

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
(CH3)2CHCH2COOH
CAS Number:
Molecular Weight:
102.13
MDL number:
UNSPSC Code:
12352106
EC Index Number:
207-975-3

vapor pressure

0.5 hPa ( 20 °C)

Quality Level

assay

≥99.0% (GC)

form

liquid

autoignition temp.

420 °C

potency

>2000 mg/kg LD50, oral (Rat)
>3000 mg/kg LD50, skin (Rabbit)

expl. lim.

1.5-6.8 % (v/v)

pH

3.1 (25 °C, 10 g/L in H2O)

bp

176 °C/1013 hPa

mp

-31 °C

transition temp

flash point 74 °C

solubility

48 g/L

density

0.93 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C5H10O2/c1-4(2)3-5(6)7/h4H,3H2,1-2H3,(H,6,7)

InChI key

GWYFCOCPABKNJV-UHFFFAOYSA-N

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Water (K. F.): ≤ 0.20 %
Density (d 20 °C/ 4 °C): 0.925 - 0.926
Identity (IR): passes test

pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class

8A - Combustible, corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

176.0 °F - Pensky-Martens closed cup

flash_point_c

80 °C - Pensky-Martens closed cup


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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