Molekula
Isoxazole
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
Isoxazole is a heterocyclic organic compound used as a building block in pharmaceutical and agrochemical synthesis. It is a colorless to pale yellow liquid with a sharp odor. Available with CAS number 288-14-2, molecular formula C3H3NO, and molecular weight 69.06 g/mol. Store at 2 to 8 °C. Hazardous: signal word Danger. Molekula supplies Isoxazole 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
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £59.20 per pack ex VAT · £71.04 inc. VAT
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 liquid |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Flash Point | 8 °C |
| Transport Class | 3 |
| Packing Group | II |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Vapour Pressure | 45.5 mmHg |
Source: PubChem CID 9254 (Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 33088188 |
| CAS Number | 288-14-2 |
| IUPAC Name | 1,2-oxazole |
| EC Number | 206-018-7 |
| Molecular Formula | C3H3NO |
| Molecular Weight | 69.06 |
| Exact Mass | 69.0215 |
| SMILES | C1=CON=C1 |
| InChIKey | CTAPFRYPJLPFDF-UHFFFAOYSA-N |
| InChI | InChI=1S/C3H3NO/c1-2-4-5-3-1/h1-3H |
| PubChem CID | 9254 |
| UN Number | UN1993 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2934999001 |
| Tariff Code | 2934999090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H225 Highly flammable liquid and vapour
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P240 Ground/bond container and receiving equipment
- P242 Use only non-sparking tools
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, 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
- 1-Oxa-2-azacyclopentadiene
- 1,2-oxazole
- 2-azafuran
- Isooxazole
- Isoxazoles
Frequently asked questions
What is isoxazole used for?
Isoxazole is primarily used as a building block in the synthesis of pharmaceuticals and agrochemicals due to its heterocyclic structure.
What is the chemical formula and molecular weight of isoxazole?
The chemical formula of isoxazole is C3H3NO, and its molecular weight is 69.06 g/mol.
How should isoxazole be stored?
Isoxazole should be stored at temperatures between 2 to 8 °C to maintain stability and prevent decomposition.
What grade of isoxazole does Molekula supply?
Molekula supplies isoxazole in technical grade; custom grades are available upon request.
Can Molekula supply isoxazole in bulk?
Yes, Molekula can supply isoxazole in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with an order of isoxazole?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation is available upon request.
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.