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Safety Information

00710

Sigma-Aldrich

Acetonitrile

purum, ≥99.0% (GC)

Synonym(s):

ACN, Cyanomethane, Ethyl nitrile, Methyl cyanide

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About This Item

Linear Formula:
CH3CN
CAS Number:
75-05-8
Molecular Weight:
41.05
Beilstein:
741857
EC Number:
200-835-2
MDL number:
MFCD00001878
UNSPSC Code:
12352001
PubChem Substance ID:
329747122

vapor density

1.41 (vs air)

vapor pressure

72.8 mmHg ( 20 °C)

grade

purum

Assay

≥99.0% (GC)

autoignition temp.

973 °F

expl. lim.

16 %

refractive index

n20/D 1.344 (lit.)
n20/D 1.344

bp

81-82 °C (lit.)

mp

−45 °C (lit.)

density

0.786 g/mL at 25 °C (lit.)

SMILES string

CC#N

InChI

1S/C2H3N/c1-2-3/h1H3

InChI key

WEVYAHXRMPXWCK-UHFFFAOYSA-N

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General description

Acetonitrile (MeCN) is a polar solvent.

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

35.6 °F - closed cup

Flash Point(C)

2.0 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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