Molekula
Acetonitrile ≥99.9%
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Acetonitrile (CH₃CN) is a highly polar aprotic solvent widely used in HPLC, peptide synthesis, and analytical chemistry for its ability to dissolve a broad range of organic and inorganic compounds. Industrially, it serves as a solvent in pharmaceutical manufacturing and in butadiene and hydrocarbon extraction, and as a starting material for amides, amines and nitrogen heterocycles. This high-purity (≥99.9%) chemical, with CAS 75-05-8 and molecular weight 41.05, is stored at ambient conditions and labeled with a **Danger** signal word due to its toxicity and flammability. Molekula supplies Acetonitrile from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Colourless liquid |
| Assay | ≥99% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 2 °C |
| Transport Class | 3 |
| Packing Group | II |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless, limpid liquid |
| Odour | Aromatic odor |
| Melting Point | -44 °C |
| Boiling Point | 82 °C |
| Density | 0.8 (relative, water = 1) |
| Solubility (other solvents) | Soluble in alcohol |
| Vapour Pressure | 9.9 kPa at 25 °C |
| Refractive Index | 1.33934 |
| pKa | pKa = -4.30 |
| log P (octanol/water) | -0.34 |
Source: PubChem CID 6342 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90038519 |
| CAS Number | 75-05-8 |
| IUPAC Name | acetonitrile |
| EC Number | 200-835-2 |
| Molecular Formula | CH3CN |
| Molecular Weight | 41.05 |
| Exact Mass | 41.0265 |
| SMILES | CC#N |
| InChIKey | WEVYAHXRMPXWCK-UHFFFAOYSA-N |
| InChI | InChI=1S/C2H3N/c1-2-3/h1H3 |
| PubChem CID | 6342 |
| UN Number | UN1648 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29269050 |
| Tariff Code | 2926907022 |
Safety & GHS
-
Flammable
GHS02
-
Health Hazard
GHS07
Hazard statements
- H225 Highly flammable liquid and vapour
- H302 + H312 + H332 Harmful if swallowed, in contact with skin or if inhaled
- H319 Causes serious eye irritation
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P304+341 IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Acetonitril
- Cyanomethane
- Cyanure de methyl
- Ethanenitrile
- Ethyl nitrile
- Methane, cyano-
- Methanecarbonitrile
- Methyl cyanide
- Methylkyanid
- USAF EK-488
Frequently asked questions
What is acetonitrile ≥99.9% commonly used for?
Acetonitrile is widely used as a polar aprotic solvent in HPLC (High-Performance Liquid Chromatography), peptide synthesis, and as a reaction medium in organic chemistry.
What is the molecular formula and molecular weight of acetonitrile?
The molecular formula is **CH₃CN**, and the molecular weight is **41.05 g/mol**.
What is the storage recommendation for acetonitrile?
Store acetonitrile in a tightly sealed container at **ambient temperature**, away from ignition sources and oxidizing agents.
What purity grades of acetonitrile does Molekula supply?
Molekula supplies acetonitrile at **≥99.9% purity**, suitable for analytical and high-purity applications.
Can Molekula supply acetonitrile in bulk quantities?
Yes, acetonitrile is available in bulk quantities—please contact our sales team for specific packaging options and minimum order quantities.
What documentation comes with an order of acetonitrile?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.