Acetonitrile
SIAL/437557 - ≥99.5%, ACS reagent
Synonym: ACN; Cyanomethane; Ethyl nitrile; Methyl cyanide
CAS Number: 75-05-8
Empirical Formula (Hill Notation): C2H3N
Molecular Weight: 41.05
EC Number: 200-835-2
MDL Number: MFCD00001878
Linear Formula: CH3CN
Product Type: Chemical
| assay | ≥99.5% |
| autoignition temp. | 973 °F |
| bp | 81-82 °C (lit.) |
| color | APHA: ≤10 |
| density | 0.786 g/mL at 25 °C (lit.) |
| evapn. residue | ≤0.005% |
| expl. lim. | 16 % |
| form | liquid |
| format | neat |
| grade | ACS reagent |
| impurities | ≤0.3% water |
| ≤0.6 μeq/g Titr. base | |
| ≤8 μeq/g Titr. acid | |
| InChI | 1S/C2H3N/c1-2-3/h1H3 |
| InChI key | WEVYAHXRMPXWCK-UHFFFAOYSA |
| mp | −45 °C (lit.) |
| Quality Level | 200 ![]() |
| refractive index | n |
| SMILES string | CC#N |
| solubility | water: soluble |
| technique(s) | solid phase extraction (SPE): suitable |
| vapor density | 1.41 (vs air) |
| vapor pressure | 72.8 mmHg ( 20 °C) |
| Application: | Acetonitrile may be used as solvent in the following processes: • Organic synthesis • Liquid-liquid extraction, solid-phase extraction or microextraction. • Spectrophotometric and fluorimetric techniques. • Electrolytes in lithium-ion batteries • Determination of pKa values of organic superbases using the isodensity polarization continuum model (IPCM). |
| Features and Benefits: | ACS solvents meet or exceed the high standards of the American Chemical Society (ACS) ,with test specifications that are specialized to every compound. According to the American Chemical Society, ACS reagent grade implies that it is a substance of sufficient purity to be used in most chemical analyses or reactions. |
| General description: | Acetonitrile (MeCN), an aliphatic nitrile, is a colorless liquid with a characteristic odor. MeCN has low viscosity, high elution strength and is highly miscible in water. It is widely used as a solvent and intermediate in organic syntheses and is transparent to UV-visible light, making it highly applicable in spectrophotometric and fluorimetric techniques. It also plays a major role as an extractant medium in liquid-liquid extraction, solid-phase extraction or microextraction. |
| General description: | Our premium ACS solvents are ideal for routine chemical synthesis, drying, purification, and critical labware cleaning. They meet or exceed the rigorous standards of the American Chemical Society (ACS), ensuring high-quality results for your research needs. Premium ACS Solvents: Our solvents meet or exceed the stringent standards set by the American Chemical Society, ensuring high quality and reliability for your laboratory applications. Replicable and Publishable Results: Designed for consistency, our solvents deliver results that can be reliably reproduced, making them ideal for research that requires publication. Versatile Applications: Suitable for routine chemical synthesis, drying, purification, and critical labware cleaning, our solvents cater to a wide range of research needs in the laboratory. |
| Packaging: | 4×4 L in PVC-coated bottle |
| Symbol | ![]() GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H225 - H302 + H312 + H332 - H319 |
| Precautionary statements | P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P312 - P305 + P351 + P338 |
| Hazard Codes | F,Xn |
| Risk Statements | 11-20/21/22-36 |
| Safety Statements | 16-36/37 |
| RIDADR | UN 1648 3 / PGII |
| WGK Germany | WGK 2 |
| Flash Point(F) | 35.6 °F - closed cup |
| Flash Point(C) | 2.0 °C - closed cup |
| Purity | ≥99.5% |
| bp | 81-82 °C (lit.) |
| mp | −45 °C (lit.) |
| Density | 0.786 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352001 |



