6.18300
Acetonitrile
Synonym(s):
Acetonitrile, Methyl cyanide, Anhydrous ACN, Dry MeCN
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About This Item
Linear Formula:
CH3CN
CAS Number:
Molecular Weight:
41.05
UNSPSC Code:
12191502
Beilstein/REAXYS Number:
741857
MDL number:
Assay:
≥99.9% (GC)
Technique(s):
HPLC: suitable
Bp:
81-82 °C (lit.)
Vapor pressure:
72.8 mmHg ( 20 °C)
Quality Segment
vapor density
1.41 (vs air)
vapor pressure
72.8 mmHg ( 20 °C)
assay
≥99.9% (GC)
form
liquid
autoignition temp.
973 °F
expl. lim.
16 %
technique(s)
HPLC: suitable
refractive index
n20/D 1.344 (lit.)
bp
81-82 °C (lit.)
mp
−45 °C (lit.)
solubility
water: soluble (1,000 g/l at 25 °C (77 °F))
density
0.786 g/mL at 25 °C (lit.)
suitability
suitable for chromatography
application(s)
general analytical
SMILES string
CC#N
InChI
1S/C2H3N/c1-2-3/h1H3
InChI key
WEVYAHXRMPXWCK-UHFFFAOYSA-N
General description
Acetonitrile is commonly used as a key component in the mobile phase for gradient elution chromatography. It is used in various chromatographic techniques, such as high-performance liquid chromatography (HPLC) and liquid chromatography-mass spectrometry (LC-MS).
Application
Acetonitrile can be used as a mobile phase:
- Buffer in the liquid chromatographic method for determination of polyamines, amino acids, metanephrines, and catecholamine compounds in human body fluids.
- Component to facilitate the fast gradient elution separations of polar neutral active pharmaceutical ingredients (APIs).
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signalword
Danger
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2
Storage Class
3 - Flammable liquids
flash_point_f
35.6 °F - closed cup
flash_point_c
2.0 °C - closed cup
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