Merck
All Photos(2)

494445

Sigma-Aldrich

Acetonitrile

biotech. grade, ≥99.93%

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.21

grade

biotech. grade

Quality Level

vapor density

1.41 (vs air)

vapor pressure

72.8 mmHg ( 20 °C)

assay

≥99.93%

form

liquid

autoignition temp.

973 °F

expl. lim.

16 %

impurities

≤0.5 ppb as quinine (fluorimetric, 254nm)
≤0.6 μeq/g Titr. base
≤8 μeq/g Titr. acid
<0.001% water

evapn. residue

<0.0002%

color

APHA: <10

refractive index

n20/D 1.344 (lit.)

bp

81-82 °C (lit.)

mp

−45 °C (lit.)

solubility

water: soluble

density

0.786 g/mL at 25 °C (lit.)

λ

H2O reference

UV absorption

λ: 190 nm Amax: 1.0
λ: 210 nm Amax: 0.03
λ: 220 nm Amax: 0.01
λ: 235 nm Amax: 0.005
λ: 254 nm Amax: ≤0.005
λ: 400 nm Amax: 0.005

SMILES string

CC#N

InChI

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

InChI key

WEVYAHXRMPXWCK-UHFFFAOYSA-N

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Packaging

100 mL in Sure/Seal™
1, 2 L in Sure/Seal™
4×4 L in glass bottle
18 L in Pure-Pac™ 1
20 L in Nowpak™ II
20, 50 L in Pure-Pac™ 2
200, 400 L in Pure-Pac™ 1

Preparation Note

Product filtered through a 0.2 μm filter.

Other Notes

Pure-Pac® II containers require the Micromatic MacroValve coupler for dispensing solvents, Z560723.

Legal Information

Pure-Pac 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

Certificate of Analysis

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Certificate of Origin

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