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8.02667

Sigma-Aldrich

Crotonaldehyde

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Synonym(s):
2-Butenal
UNSPSC Code:
41116105
NACRES:
NA.22

vapor pressure

24 hPa ( 20 °C)

Quality Level

200

Assay

≥99.0% (GC)

form

liquid

autoignition temp.

230 °C

potency

80 mg/kg LD50, oral (rat)
128-324 mg/kg LD50, skin (rabbit)

expl. lim.

2.1-15.5 % (v/v)

bp

104 °C/1013 hPa

mp

-74 °C

transition temp

flash point 13 °C

solubility

181 g/L

density

0.85 g/cm3 at 20 °C

General description

mixture of isomers for synthesis

Application

Crotonaldehyde (mixture of isomers) for synthesis. CAS 4170-30-3, molar mass 70.09 g/mol.

Storage and Stability

Store below +30°C.

Analysis Note

Assay (GC, area%):≥ 99.0 % (a/a)
Density (d 20 °C/ 4 °C):0.851 - 0.853
Identity (IR):passes test

Signal Word

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Acute 1 - Eye Dam. 1 - Flam. Liq. 2 - Muta. 2 - Skin Irrit. 2 - STOT RE 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

55.4 °F

Flash Point(C)

13 °C

Regulatory Information

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