4-Hydroxy-3-nitrocoumarin
Also known as: 2H-1-Benzopyran-2-one,4-hydroxy-3-nitro-, 3-Nitro-4-hydroxycoumarin, 4-HYDROXY-3-NITRO-2H-CHROMEN-2-ONE, 4-Hydroxy-3-nitro-2H-1-benzopyran-2-one, 4-Hydroxy-3-nitro-3-chromene-2-one, 4-Hydroxy-3-nitrocoumarin 98%, 3-nitro-4-hydroxychromen-2-one, AURORA KA-3190, NSC 519722
4-Hydroxy-3-nitrocoumarin (CAS 20261-31-8) is a compound in the Nitrogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C9H5NO5 and a molecular weight of 207.14000 g/mol. Key properties include a melting point of 172 °C (dec.)(lit.), a boiling point of 288.4ºC at 760mmHg, a density of 1.63g/cm3 and a flash point of 128.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 20261-31-8
- Jingsj CID
- J-26206-6
- Molecular Formula
- C9H5NO5
- Molecular Weight
- 207.14000 g/mol
- Category
- Nitrogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 172 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 288.4ºC at 760mmHg |
| Density | 1.63g/cm3 |
| Flash Point | 128.2ºC |
| Exact Mass | 207.01700 |
| PSA | 96.26000 |
| LogP | 1.93000 |
| Vapor Pressure | 0mmHg at 25°C |
| Refractive Index | 1.674 |
Customs & Trade Information
| HS Code | 2932209090 |
|---|---|
| Summary | 2932209090. other lactones. 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 4-Hydroxy-3-nitrocoumarin?
The CAS number of 4-Hydroxy-3-nitrocoumarin is 20261-31-8.
What are the molecular formula and molecular weight of 4-Hydroxy-3-nitrocoumarin?
4-Hydroxy-3-nitrocoumarin has molecular formula C9H5NO5 and molecular weight 207.14000 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. "4-Hydroxy-3-nitrocoumarin (CAS 20261-31-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26206-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.