Molekula
Crotononitrile, mixture of cis and trans
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Crotononitrile, a mixture of cis and trans isomers, is a versatile organic intermediate used in the synthesis of pharmaceuticals, agrochemicals, and specialty polymers. It is a colorless to pale yellow liquid with a pungent odor. CAS: 4786-20-3, molecular formula: CH₃CH=CHCN, molecular weight: 67.09 g/mol. Store at ambient temperature. Hazard classification: Danger. Molekula supplies Crotononitrile, mixture of cis and trans 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 | Clear colourless to pale yellow liquid |
| Water | ≤0.5% |
| Purity | ≥98.0% |
| Allyl alcohol | ≤1.0% |
| Allyl chloride | ≤0.02% |
| Allyl cyanide | ≤0.5% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 16 °C |
| Transport Class | 3 |
| Packing Group | III |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90036407 |
| CAS Number | 4786-20-3 |
| IUPAC Name | (E)-but-2-enenitrile |
| EC Number | 225-335-1 |
| Molecular Formula | CH3CH=CHCN |
| Molecular Weight | 67.09 |
| Exact Mass | 67.0422 |
| SMILES | C/C=C/C#N |
| InChIKey | NKKMVIVFRUYPLQ-NSCUHMNNSA-N |
| InChI | InChI=1S/C4H5N/c1-2-3-4-5/h2-3H,1H3/b3-2+ |
| PubChem CID | 637921 |
| UN Number | UN1993 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29269050 |
| Tariff Code | 2926907090 |
Safety & GHS
-
Flammable
GHS02
-
Health Hazard
GHS07
Hazard statements
- H225 Highly flammable liquid and vapour
- H302+332 Harmful if swallowed or inhaled
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- 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
No alternate names recorded for this product.
Frequently asked questions
What is crotononitrile used for?
Crotononitrile is primarily used as an intermediate in the synthesis of pharmaceuticals and agrochemicals.
What is the chemical formula and molecular weight of crotononitrile?
The formula is CH3CH=CHCN with a molecular weight of 67.09 g/mol.
How should crotononitrile be stored?
Crotononitrile should be stored at ambient temperature, away from light and incompatible materials.
What grade of crotononitrile does Molekula supply?
Molekula supplies crotononitrile as a mixture of cis and trans isomers, typically in technical grade.
Can Molekula supply crotononitrile in bulk?
Yes, Molekula can supply crotononitrile in bulk quantities; please contact sales for details.
What documentation comes with a crotononitrile order?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.
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.