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L010000

Sigma-Aldrich

Acetonitrile

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Synonym(s):
ACN, Cyanomethane, Ethyl nitrile, Methyl cyanide
Linear Formula:
CH3CN
CAS Number:
Molecular Weight:
41.05
Beilstein:
741857
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor density

1.41 (vs air)

Quality Level

vapor pressure

72.8 mmHg ( 20 °C)

type

for DNA synthesis

form

liquid

autoignition temp.

973 °F

expl. lim.

16 %

storage condition

dry at room temperature

impurities

≤30 ppm water content (Karl Fischer)

color

clear

refractive index

n/D 1.342-1.346
n20/D 1.344 (lit.)

bp

81-82 °C (lit.)

mp

−45 °C (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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1 of 4

This Item
PHR1551271004900667
Acetonitrile

L010000

Acetonitrile

Acetonitrile Pharmaceutical Secondary Standard; Certified Reference Material

PHR1551

Acetonitrile

Acetonitrile anhydrous, 99.8%

271004

Acetonitrile

Acetonitrile for UHPLC, suitable for mass spectrometry (MS)

900667

Acetonitrile

form

liquid

form

-

form

liquid

form

liquid

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)

refractive index

n/D 1.342-1.346, n20/D 1.344 (lit.)

refractive index

n20/D 1.344 (lit.)

refractive index

n20/D 1.344 (lit.)

refractive index

n20/D 1.344 (lit.)

impurities

≤30 ppm water content (Karl Fischer)

impurities

-

impurities

<0.001% water, <0.005% water (100 mL pkg)

impurities

-

density

0.786 g/mL at 25 °C (lit.)

density

0.786 g/mL at 25 °C (lit.)

density

0.786 g/mL at 25 °C (lit.)

density

0.786 g/mL at 25 °C (lit.)

General description

Acetonitrile is a wash solution, containing anhydrous acetonitrile (water content <30 ppm), is used as the overall wash solvent following each step in the synthesis cycle.

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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