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110086

Sigma-Aldrich

Acetonitrile

ReagentPlus®, 99%

Synonym(s):
ACN, Cyanomethane, Ethyl nitrile, Methyl cyanide
Linear Formula:
CH3CN
CAS Number:
Molecular Weight:
41.05
Beilstein:
741857
EC Number:
MDL number:
eCl@ss:
39031501
PubChem Substance ID:
NACRES:
NA.03

vapor density

1.41 (vs air)

Quality Level

vapor pressure

72.8 mmHg ( 20 °C)

product line

ReagentPlus®

Assay

99%

form

liquid

autoignition temp.

973 °F

expl. lim.

16 %

technique(s)

UV/Vis spectroscopy: suitable

refractive index

n20/D 1.344 (lit.)

bp

81-82 °C (lit.)

mp

−45 °C (lit.)

solubility

organic solvents: soluble(lit.)
water: soluble(lit.)

density

0.786 g/mL at 25 °C (lit.)

format

neat

SMILES string

CC#N

InChI

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

InChI key

WEVYAHXRMPXWCK-UHFFFAOYSA-N

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Acetonitrile

vapor density

1.41 (vs air)

vapor density

1.41 (vs air)

vapor density

1.41 (vs air)

vapor density

1.41 (vs air)

vapor pressure

72.8 mmHg ( 20 °C)

vapor pressure

72.8 mmHg ( 20 °C)

vapor pressure

72.8 mmHg ( 20 °C)

vapor pressure

72.8 mmHg ( 20 °C)

assay

99%

assay

≥99.5%

assay

99.8%

assay

≥99.9%

form

liquid

form

liquid

form

liquid

form

liquid

autoignition temp.

973 °F

autoignition temp.

973 °F

autoignition temp.

973 °F

autoignition temp.

525 °F, 973 °F

expl. lim.

16 %

expl. lim.

16 %

expl. lim.

16 %

expl. lim.

16 %

General description

Acetonitrile (MeCN), an aliphatic nitrile, is a colorless liquid with a characteristic odor. MeCN has low viscosity, high elution strength and is highly miscible in water. It is widely used as a solvent and intermediate in organic syntheses and is transparent to UV-visible light, making it highly applicable in spectrophotometric and fluorimetric techniques. It also plays a major role as an extractant medium in liquid-liquid extraction, solid-phase extraction or microextraction.

Features and Benefits

ReagentPlus® solvents have a guaranteed purity ≥98.5% and are ideal for experiments and applications that need fewer specifications. They are primarily defined by assay specifications and offer suitable quality for general lab use.

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Pictograms

FlameExclamation mark

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


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