Methyl 2-methyl-1,3-benzoxazole-5-carboxylate
Also known as: Methyl 2-methylbenzo[d]oxazole-5-carboxylate, 2-Methyl-1,3-benzoxazole-5-carboxylic acid methyl ester, 2-Methyl-benzooxazole-5-carboxylic acid methyl ester, 5-(Methoxycarbonyl)-2-methyl-1,3-benzoxazole, 5-Benzoxazolecarboxylic acid, 2-methyl-, methyl ester, Methyl 2-methyl-1,3-benzoxazole-5-carboxylate, BUTTPARK 121\16-98
Methyl 2-methyl-1,3-benzoxazole-5-carboxylate (CAS 136663-21-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H9NO3 and a molecular weight of 191.183 g/mol. Key properties include a melting point of 66-68ºC, a boiling point of 286.7±13.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 127.2±19.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 136663-21-3
- Jingsj CID
- J-1166556-8
- Molecular Formula
- C10H9NO3
- Molecular Weight
- 191.183 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 66-68ºC |
|---|---|
| Boiling Point | 286.7±13.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 127.2±19.8 °C |
| Exact Mass | 191.058243 |
| PSA | 52.33000 |
| LogP | 1.80 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.579 |
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 Methyl 2-methyl-1,3-benzoxazole-5-carboxylate?
The CAS number of Methyl 2-methyl-1,3-benzoxazole-5-carboxylate is 136663-21-3.
What are the molecular formula and molecular weight of Methyl 2-methyl-1,3-benzoxazole-5-carboxylate?
Methyl 2-methyl-1,3-benzoxazole-5-carboxylate has molecular formula C10H9NO3 and molecular weight 191.183 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methyl 2-methyl-1,3-benzoxazole-5-carboxylate (CAS 136663-21-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1166556-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.