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34442

Sigma-Aldrich

Acetonitrile

suitable for DNA synthesis, ≥99.9% (GC)

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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:
eCl@ss:
39031501
PubChem Substance ID:
NACRES:
NA.03

vapor density

1.41 (vs air)

Quality Level

vapor pressure

72.8 mmHg ( 20 °C)

Assay

≥99.9% (GC)

form

liquid

autoignition temp.

973 °F

expl. lim.

16 %

technique(s)

DNA synthesis: suitable
cDNA synthesis: suitable

impurities

≤0.0001% free alkali (as NH3)
≤0.001% free acid (as CH3COOH)
≤0.001% water (Karl Fischer)

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.)

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
AX0142AX014533019
Acetonitrile suitable for DNA synthesis, ≥99.9% (GC)

Sigma-Aldrich

34442

Acetonitrile

-
Acetonitrile gradient grade OmniSolv®

Supelco

AX0142

Acetonitrile

-
Acetonitrile HPLC, Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs

Supelco

AX0145

Acetonitrile

-
Acetonitrile puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99.5% (GC)

Sigma-Aldrich

33019

Acetonitrile

Essential Grade
vapor pressure

72.8 mmHg ( 20 °C)

vapor pressure

72.8 mmHg ( 20 °C), 97 hPa ( 20 °C)

vapor pressure

72.8 mmHg ( 20 °C), 97 hPa ( 20 °C)

vapor pressure

72.8 mmHg ( 20 °C)

assay

≥99.9% (GC)

assay

≥99.9% (GC)

assay

≥99.8% (GC)

assay

≥99.5% (GC)

form

liquid

form

liquid

form

liquid

form

liquid

autoignition temp.

973 °F

autoignition temp.

973 °F

autoignition temp.

973 °F

autoignition temp.

973 °F

expl. lim.

16 %

expl. lim.

16 %

expl. lim.

16 %

expl. lim.

16 %

Other Notes

The article number 34442-4X2.5L will be discontinued. Please order the single bottle 34442-2.5L which is physically identical with the same exact specifications.

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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