Skip to Content
MilliporeSigma
All Photos(2)

Documents

8.02650

Sigma-Aldrich

Crotonic acid

for synthesis

Synonym(s):

Crotonic acid, ß-Methylacrylic acid, 2-Butenoic acid

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
CH3CH=CHCOOH
CAS Number:
Molecular Weight:
86.09
MDL number:
UNSPSC Code:
12352106
EC Index Number:
203-533-9
NACRES:
NA.22

vapor pressure

0.25 hPa ( 20 °C)

Quality Level

assay

≥99.0% (GC)

form

crystals

autoignition temp.

500 °C

potency

1000 mg/kg LD50, oral (Rat)
600 mg/kg LD50, skin (Rabbit)

pH

3 (20 °C, 10 g/L in H2O)

bp

185.0-199.5 °C/1013 hPa

mp

70-73 °C

transition temp

flash point 90 °C

density

1.02 g/cm3 at 20 °C

bulk density

543 kg/m3

storage temp.

2-30°C

InChI

1S/C4H6O2/c1-2-3-4(5)6/h2-3H,1H3,(H,5,6)/b3-2+

InChI key

LDHQCZJRKDOVOX-NSCUHMNNSA-N

Related Categories

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Melting range (lower value): ≥ 70 °C
Melting range (upper value): ≤ 73 °C
Identity (IR): passes test

pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1

Storage Class

8A - Combustible, corrosive hazardous materials

wgk_germany

WGK 2

flash_point_f

190.4 °F - closed cup

flash_point_c

88 °C - 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

Customers Also Viewed

Slide 1 of 4

1 of 4

5-α-Cholestane certified reference material, 10 mg/mL in chloroform

Supelco

47124

5-α-Cholestane

Methacrylic acid contains 250 ppm MEHQ as inhibitor, 99%

Sigma-Aldrich

155721

Methacrylic acid

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