Molekula
Benzoxazole
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
Benzoxazole is a heterocyclic organic compound characterized by a benzene ring fused with an oxazole ring, widely used in pharmaceuticals, agrochemicals, and organic synthesis as a key intermediate. It appears as a white to pale yellow crystalline solid with a faint odor. This chemical has a CAS number of 273-53-0, a molecular formula of C7H5NO, and a molecular weight of 119.12 g/mol. Store benzoxazole between 2 to 8°C in a cool, dry place, and handle with care—it carries a signal word of *Warning* due to potential hazards. Molekula supplies benzoxazole 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 to light orange transparent liquid |
| Water | ≤0.5% |
| Assay HPLC | ≥97.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Flash Point | 58 °C |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Vapour Pressure | 0.24 mmHg |
Source: PubChem CID 9228 (Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 21061250 |
| CAS Number | 273-53-0 |
| IUPAC Name | 1,3-benzoxazole |
| EC Number | 205-988-9 |
| Molecular Formula | C7H5NO |
| Molecular Weight | 119.12 |
| Exact Mass | 119.0371 |
| SMILES | C1=CC=C2C(=C1)N=CO2 |
| InChIKey | BCMCBBGGLRIHSE-UHFFFAOYSA-N |
| InChI | InChI=1S/C7H5NO/c1-2-4-7-6(3-1)8-5-9-7/h1-5H |
| PubChem CID | 9228 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29349944 |
| Tariff Code | 2934999090 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- 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
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
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-3-aza-1H-indene
- 1-Oxa-3-azaindene
- 1,3-Benzoxazole
- BENZO[D]OXAZOLE
- Benzoxazoles
- USAF EK-5017
- WLN: T56 BN DOJ
Frequently asked questions
What is benzoxazole commonly used for?
Benzoxazole is primarily used as an intermediate in the synthesis of pharmaceuticals, agrochemicals, and organic light-emitting diodes (OLEDs).
What is the chemical formula and molecular weight of benzoxazole?
The chemical formula is **C7H5NO** and the molecular weight is **119.12 g/mol**.
How should benzoxazole be stored?
Store benzoxazole at **2–8°C** in a cool, dry place, away from incompatible substances.
What purity grades of benzoxazole does Molekula supply?
Molekula supplies benzoxazole in **analytical and synthetic grades**—contact us for specific purity details.
Can Molekula supply benzoxazole in bulk quantities?
Yes, we offer bulk quantities of benzoxazole—please inquire for minimum order quantities and pricing.
What documentation comes with a benzoxazole order?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and batch-specific documentation.
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.