Benzoxazole
- CAS NO.：273-53-0
- Empirical Formula: C7H5NO
- Molecular Weight: 119.12
- MDL number: MFCD00005765
- EINECS: 205-988-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:18:13
What is Benzoxazole?
Chemical properties
COLORLESS TO YELLOW CRYST. LOW MELTING SOLID
Definition
ChEBI: A benzoxazole in which the benzene ring is fused to a 1,3-oxazole ring across positions 4 and 5.
Safety Profile
Poison by intraperitoneal andintravenous routes. Moderately toxic by ingestion. Whenheated to decomposition it emits toxic fumes such asNOx.
Properties of Benzoxazole
| Melting point: | 27-30 °C(lit.) |
| Boiling point: | 182 °C(lit.) |
| Density | 1,175 g/cm3 |
| refractive index | 1.5594 |
| Flash point: | 137 °F |
| storage temp. | 2-8°C |
| form | Liquid |
| pka | 1.17±0.10(Predicted) |
| color | Clear yellow to light brown-orange |
| Water Solubility | Insoluble |
| BRN | 109467 |
| CAS DataBase Reference | 273-53-0(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzoxazole(273-53-0) |
| EPA Substance Registry System | Benzoxazole (273-53-0) |
Safety information for Benzoxazole
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Benzoxazole
| InChIKey | BCMCBBGGLRIHSE-UHFFFAOYSA-N |
Benzoxazole manufacturer
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