Acetonitrile (CH3CN)
Acetonitrile, HPLC for Gradient Analysis, meets analytical specification of Ph.Eur, Fisher Chemical
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 MDL Number: 1878 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N 2.5LT Acetonitrile, HPLC for gradient analysis, meets analytical specification of Ph.Eur
Acetonitrile, Optima™ LC/MS Grade, Fisher Chemical
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 MDL Number: 1878 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N 500ML Acetonitrile, Optima(TM) LC/MS grade
Acetonitrile, 99.9%, Extra Dry over Molecular Sieve, AcroSeal™, ACROS Organics™
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 MDL Number: MFCD00001878 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N 2.5LT Acetonitrile, 99.9%, Extra Dry over Molecular Sieve, AcroSeal
Honeywell Riedel-de Haen™ Acetonitrile, CHROMASOLV™, for HPLC, gradient grade, ≥99.9%, Honeywell Riedel-de Haën™
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 MDL Number: MFCD00001878 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N X4 Acetonitrile CHROMASOLV, for HPLC, gradient grade,
Acetonitrile, for UHPLC Gradient Grade Analysis
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 MDL Number: 1878 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N 1LT Acetonitrile, for UHPLC gradient grade analysis
Honeywell Riedel-de Haen™ Acetonitrile, CHROMASOLV™, ≥99.9%, for LC-MS, Honeywell Riedel-de Haën™
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 MDL Number: MFCD00001878 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N X6 Acetonitrile LC-MS CHROMASOLV
Acetonitrile, Extra Pure, SLR, Fisher Chemical
500ML Acetonitrile, extra pure, SLR
Acetonitrile, Advanced HPLC Grade for HPLC Gradient Analysis, Fisher Chemical
1LT Acetonitrile, Advanced HPLC grade for HPLC gradient analysis
Acetonitrile, 99.9+%, Extra Dry, AcroSeal™, ACROS Organics™
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 MDL Number: MFCD00001878 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N 100ML Acetonitrile, 99.9+%, Extra Dry, AcroSeal
Acetonitrile, BAKER ANALYZED HPLC, J.T.Baker™
Molecular Formula: C2H3N Synonym: Ethanenitrile, Cyanomethane, Methyl cyanide 1LT ACETONITRILE HPLC BAKER ANALYZED HPLC
Acetonitrile, HPLC Grade (Far UV), >99.8%, Alfa Aesar™
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 MDL Number: MFCD00001878 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N ACETONITRILE HPLC GRADE (FAR UV) 99.8% 1L
Acetonitrile, HPLC Gradient Grade, ACROS Organics™
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 MDL Number: MFCD00001878 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N 1LT Acetonitrile, 99.9%, for HPLC gradient grade,conform Eur.Ph.
Acetonitrile, Far UV Gradient Grade, BAKER ANALYZED HPLC, J.T.Baker™
2,5LT Acetonitrile BAKER ANALYZED HPLC
Acetonitrile, for Trace Metal Analysis, Primar™, Fisher Chemical
2.5LT Acetonitrile, for trace metal analysis, Primar(TM)
Acetonitrile, Certified AR for Analysis, Fisher Chemical
5LT Acetonitrile, Certified AR for analysis
Acetonitrile, 99.9%, Extra Dry, AcroSeal™, ACROS Organics™
100ML Acetonitrile, 99.9%, Extra Dry, AcroSeal, package of 4x25ML bottles
Acetonitrile, Ultra Gradient Grade, BAKER ANALYZED HPLC, J.T.Baker™
Molecular Formula: C2H3N Synonym: Ethanenitrile, Cyanomethane, Methyl cyanide 5LT Acetonitrile BAKER ANALYZED HPLC
Acetonitrile with 0.1% Formic Acid (v/v), Optima™ LC/MS Grade
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.05 MDL Number: 3297 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methanoic acid, formylic acid, aminic acid, bilorin, hydrogen carboxylic acid, formisoton, myrmicyl, formira, acide formique, collo-bueglatt PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: formic acid SMILES: C(=O)O 4LT Acetonitrile, with 0.1% (v/v) Formic acid, Optima LC/MS grade
Acetonitrile, UHPLC-MS, Thermo Scientific™
1L Acetonitrile, Optima UHPLC/MS grade
Acetonitrile with 0.1% Trifluoroacetic Acid (v/v), Optima™ LC/MS Grade
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 MDL Number: 4169 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N 1LT Acetonitrile, with 0.1% (v/v) TFA, Optima LC/MS grade
Acetonitrile, HPLC for Fluorescence Detection, Fisher Chemical
1LT Acetonitrile, HPLC for fluorescence detection
Acetonitrile, anhydrous, >99.8%, Alfa Aesar
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 MDL Number: MFCD00001878 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N 1LT Acetonitrile, anhydrous, 99.8+%, packaged under Argon in resealable ChemSeal¬t bottles 1l
Acetonitrile, puriss. p.a. ACS Reagent, Honeywell
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 MDL Number: MFCD00001878 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N 1LT Acetonitrile puriss. p.a., ACS reagent, reag.Ph. Eur., =99.5% (GC)
Acetonitrile, 80%, 20% Water with 0.1% Formic Acid, Optima LC/MS, Fisher Chemical
500ML Acetonitrile, 80%, 20% Water with 0.1% Formic acid, Optima LC/MS
Acetonitrile Anhydrous (DNA Synthesis), Fisher BioReagents
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N 4LT Acetonitrile Anhydrous for DNA Synthesis,
Acetonitrile, HPLC for Electrochemical Detection, Fisher Chemical
2.5LT Acetonitrile, HPLC for electrochemical detection
Honeywell Riedel-de Haen™ Acetonitrile, R CHROMASOLV™, for liquid chromatography, ≥99.8% (GC), Honeywell Riedel-de Haen
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 MDL Number: MFCD00001878 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N X4 Acetonitrile CHROMASOLV , for HPLC, =99.8% (GC)
Acetonitrile, 99.8%, for HPLC, ACROS Organics™
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 MDL Number: MFCD00001878 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N 1LT Acetonitrile, 99.8%, for HPLC
Acetonitrile, anhydrous, >99.8%, Alfa Aesar™
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 MDL Number: MFCD00001878 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N ACETONITRILE ANH 99.8% 1L
Acetonitrile, 99+%, for spectroscopy, ACROS Organics™
CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 MDL Number: MFCD00001878 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N Synonym: methyl cyanide, cyanomethane, ethanenitrile, methanecarbonitrile, ethyl nitrile, methane, cyano, acetonitril, cyanure de methyl, methylkyanid, mecn PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N 1LT Acetonitrile, 99+%, for spectroscopy

Acetonitrile (CH3CN), CAS 75-05-8, also known as methyl cyanide or cyanomethane, is the simplest organic nitrile. Produced mainly as a byproduct of manufacturing acrylonitrile, acetonitrile is a colorless liquid with an ether-like odor.
Available in various grades, acetonitrile is commonly used in the laboratory:
- As a polar aprotic solvent for a variety of organic reactions
- For such applications as high-performance liquid chromatography (HPLC)
- For reverse-phase HPLC as an alternative to methanol
In industry, it is likewise used as a solvent for the manufacture of such products as pharmaceuticals, pesticides, and perfumes.
When heated, acetonitrile emanates highly toxic hydrogen cyanide fumes and produces flammable vapors in reaction with water, steam, or acids. Exposure to acetonitrile in liquid or vapor form may irritate the eyes, nose, and respiratory tract. Long-term exposure may cause central nervous system damage. Handlers should wear protective gloves, proper eye and face protection, and avoid breathing fumes. Acetonitrile should be kept away from open flames, hot surfaces, and sources of ignition and stored in a well-ventilated, cool, tightly closed container.