2,4,5-Trimethyloxazole
Also known as: 2,4,5-trimethyl-1,3-oxazole, Trimethyloxazole, Oxazole, 2,4,5-trimethyl-, MFCD00005308, EINECS 243-952-4
2,4,5-Trimethyloxazole (CAS 20662-84-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C6H9NO and a molecular weight of 111.142 g/mol. Key properties include a boiling point of 133.5±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 33.3±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 20662-84-4
- Jingsj CID
- J-29326-5
- Molecular Formula
- C6H9NO
- Molecular Weight
- 111.142 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 133.5±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 33.3±0.0 °C |
| Exact Mass | 111.068413 |
| PSA | 26.03000 |
| LogP | 1.09 |
| Vapor Pressure | 10.4±0.2 mmHg at 25°C |
| Refractive Index | 1.457 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 2,4,5-Trimethyloxazole?
The CAS number of 2,4,5-Trimethyloxazole is 20662-84-4.
What are the molecular formula and molecular weight of 2,4,5-Trimethyloxazole?
2,4,5-Trimethyloxazole has molecular formula C6H9NO and molecular weight 111.142 g/mol.
Is 2,4,5-Trimethyloxazole hazardous?
2,4,5-Trimethyloxazole has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,4,5-Trimethyloxazole (CAS 20662-84-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29326-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.