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
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 analysi
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 250ML Acetonitrile LC-MS CHROMASOLV
Acetonitrile, 99.9%, Extra Dry, AcroSeal™, ACROS Organics™
100ML Acetonitrile, 99.9%, Extra Dry, AcroSeal, package of 4x25ML bottles
Acetonitrile, Extra Pure, SLR, Fisher Chemical
500ML Acetonitrile, extra pure, SLR
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 1LT Acetonitrile CHROMASOLV, for HPLC, gradient grade, =99.9%
Acetonitrile, Certified AR for Analysis, Fisher Chemical
5LT Acetonitrile, Certified AR for 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, 99+%, extra pure, 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 25LT Acetonitrile, 99+%, extra pure
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, UHPLC-MS, Thermo Scientific™
1LT Acetonitrile, UHPLC/MS grade
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, BAKER ANALYZED™ ULTRA LC/MS, J.T.Baker™
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 1LT ACETONITRILE ULTRA LCMS SCHOTT BAKER ANALYZEDULTRA LC/MS
Acetonitrile, Advanced HPLC Grade for HPLC Gradient Analysis, Fisher Chemical
1LT Acetonitrile, Advanced HPLC grade for HPLC gradient analysis
Acetonitrile, BAKER ANALYZED HPLC, J.T.Baker™
Molecular Formula: C2H3N Synonym: Ethanenitrile, Cyanomethane, Methyl cyanide 5LT Acetonitrile BAKER ANALYZED HPLC
Acetonitrile, Far UV Gradient Grade, BAKER ANALYZED HPLC, J.T.Baker™
2,5LT Acetonitrile BAKER ANALYZED HPLC
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 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 2.5LT Acetonitrile, with 0.1% (v/v) TFA, Optima LC/MS grade
Acetonitrile CHROMASOLV™ Plus, for HPLC, ≥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® Plus, for HPLC,
Acetonitrile, 99.5%, for analysis, 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 25LT Acetonitrile, 99.5%, for analysis
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, 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, Ultra Gradient Grade, BAKER ANALYZED HPLC, J.T.Baker™
Molecular Formula: C2H3N Synonym: Ethanenitrile, Cyanomethane, Methyl cyanide 5LT Acetonitrile BAKER ANALYZED HPLC
Acetonitrile, BAKER ANALYZED Pesticide Reagent, J.T.Baker™
2,5LT ACETONITRILE PESTI BAKER ANALYZED PesticideReagent
Acetonitrile, HPLC for Fluorescence Detection, Fisher Chemical
1LT Acetonitrile, HPLC for fluorescence detection
Acetonitrile, LC-MS Ultra CHROMASOLV™, 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 2LT Acetonitrile LC-MS Ultra CHROMASOLV, tested for UHPLC-MS
Acetonitrile, for Trace Metal Analysis, Primar™, Fisher Chemical
2.5LT Acetonitrile, for trace metal analysis, Primar(TM)
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 2.5LT 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.