3-Methyl-2-benzoxazolinone
Also known as: 2(3H)-Benzoxazolone, 3-methyl-, 3-Methyl-2(3H)-benzoxazolone, 3-Methyl-3H-benzoxazol-2-one, 3-Methylbenzo[d]oxazol-2(3H)-one, 3-Methylbenzoxazolone, N-Methyl-2-benzoxazolinone, N-Methylbenzoxazolone, 3-Methyl-1,3-benzoxazol-2(3H)-one, 3-Methyl-2-oxo-3H-benzoxazole
3-Methyl-2-benzoxazolinone (CAS 21892-80-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H7NO2 and a molecular weight of 149.14700 g/mol. Key properties include a melting point of 82-86 °C, a boiling point of 238.1ºC at 760 mmHg, a density of 1.273 g/cm3 and a flash point of 97.8ºC. It is listed by 2 suppliers, 1 of which publish reference prices, from 13.76 to 56.00 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 21892-80-8
- Jingsj CID
- J-1498187-8
- Molecular Formula
- C8H7NO2
- Molecular Weight
- 149.14700 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | 98% 500g | ¥6,880.00 | $2.06 /gBest ¥13.76/g CNY | CN China MOQ 500g | |
In Stock | 98% 100g | ¥2,200.00 | $3.29 /g ¥22.00/g CNY | CN China MOQ 100g | |
In Stock | 98% 25g | ¥620.00 | $3.71 /g ¥24.80/g CNY | CN China MOQ 25g |
Physicochemical Properties
| Melting Point | 82-86 °C |
|---|---|
| Boiling Point | 238.1ºC at 760 mmHg |
| Density | 1.273 g/cm3 |
| Flash Point | 97.8ºC |
| Exact Mass | 149.04800 |
| PSA | 35.14000 |
| LogP | 1.13150 |
| Vapor Pressure | 0.0433mmHg at 25°C |
| Refractive Index | 1.584 |
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 3-Methyl-2-benzoxazolinone?
The CAS number of 3-Methyl-2-benzoxazolinone is 21892-80-8.
What are the molecular formula and molecular weight of 3-Methyl-2-benzoxazolinone?
3-Methyl-2-benzoxazolinone has molecular formula C8H7NO2 and molecular weight 149.14700 g/mol.
Which suppliers offer 3-Methyl-2-benzoxazolinone?
2 supplier(s) listed; reference unit price ¥13.76–56.00 /g.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Methyl-2-benzoxazolinone (CAS 21892-80-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1498187-8 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.