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Sigma-Aldrich

Acetonitrile

electronic grade, 99.999% trace metals basis

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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.23

grade

battery grade
electronic grade

Quality Level

vapor density

1.41 (vs air)

vapor pressure

72.8 mmHg ( 20 °C)

Assay

99.999% trace metals basis

form

liquid

autoignition temp.

973 °F

expl. lim.

16 %

impurities

≤0.05% water
water

color

colorless

refractive index

n20/D 1.344 (lit.)

bp

81-82 °C (lit.)

mp

−45 °C (lit.)

solubility

water: soluble (completely)

density

0.786 g/mL at 25 °C (lit.)

application(s)

battery manufacturing

format

neat

SMILES string

CC#N

InChI

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

InChI key

WEVYAHXRMPXWCK-UHFFFAOYSA-N

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General description

The structure of acetonitrile was determined by gas electron diffraction.

Application

Acetonitrile is a high purity solvent used in electrical applications and in the synthesis of high-purity materials.

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

Flash Point(C)

2 °C

Regulatory Information

危险化学品

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Molecular Structures of Hydrogen Cyanide and Acetonitrile as Studied by Gas Electron Diffraction
Karakida K, et al.
Bulletin of the Chemical Society of Japan, 47(2), 299-304 (1974)
Ranen Aviner et al.
PLoS genetics, 11(10), e1005554-e1005554 (2015-10-07)
Studying the complex relationship between transcription, translation and protein degradation is essential to our understanding of biological processes in health and disease. The limited correlations observed between mRNA and protein abundance suggest pervasive regulation of post-transcriptional steps and support the
Seung-Ho Shin et al.
PloS one, 10(9), e0137011-e0137011 (2015-09-04)
Congenital cholesteatomas are epithelial lesions that present as an epithelial pearl behind an intact eardrum. Congenital and acquired cholesteatomas progress quite differently from each other and progress patterns can provide clues about the unique origin and pathogenesis of the abnormality.
Fang Xu et al.
The Plant cell, 27(5), 1547-1562 (2015-05-15)
Nod-like receptors (NLRs) serve as immune receptors in plants and animals. The stability of NLRs is tightly regulated, though its mechanism is not well understood. Here, we show the crucial impact of N-terminal acetylation on the turnover of one plant
Alvaro Goyanes et al.
Molecular pharmaceutics, 12(11), 4077-4084 (2015-10-17)
Three dimensional printing (3D printing) was used to fabricate novel oral drug delivery devices with specialized design configurations. Each device was loaded with multiple actives, with the intent of applying this process to the production of personalized medicines tailored at

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