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Key Documents

01-0645

Sigma-Aldrich

Acetonitrile

≥99.8% (GC), for chromatography

Synonym(s):

ACN, Cyanomethane, Ethyl nitrile, Methyl cyanide

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About This Item

Linear Formula:
CH3CN
CAS Number:
Molecular Weight:
41.05
Beilstein/REAXYS Number:
741857
MDL number:
UNSPSC Code:
12352001
PubChem Substance ID:

Product Name

Acetonitrile,

vapor density

1.41 (vs air)

vapor pressure

72.8 mmHg ( 20 °C)

assay

≥99.8% (GC)

form

liquid

autoignition temp.

973 °F

expl. lim.

16 %

availability

available only in Japan

refractive index

n20/D 1.344 (lit.)

bp

81-82 °C (lit.)

mp

−45 °C (lit.)

density

0.786 g/mL at 25 °C (lit.)

suitability

suitable for chromatography

format

neat

SMILES string

CC#N

InChI

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

InChI key

WEVYAHXRMPXWCK-UHFFFAOYSA-N

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pictograms

FlameExclamation mark

signalword

Danger

Hazard Classifications

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

Storage Class

3 - Flammable liquids

wgk_germany

WGK 2

flash_point_f

55.0 °F

flash_point_c

12.8 °C


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