β-Naphthoflavone
Also known as: 5,6-Benzoflavone, beta-Naphthoflavone, BNF, beta-NF, 3-Phenyl-1H-naphtho[2,1-b]pyran-1-one, 3-Phenylbenzo[f]chromen-1-one, NSC 136015
β-Naphthoflavone (CAS 6051-87-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C19H12O2 and a molecular weight of 272.30 g/mol. Key properties include a melting point of 185-189 °C, a boiling point of 460.9±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 215.8±22.3 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 6051-87-2
- Jingsj CID
- J-1031558-3
- Molecular Formula
- C19H12O2
- Molecular Weight
- 272.30 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 185-189 °C |
|---|---|
| Boiling Point | 460.9±45.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 215.8±22.3 °C |
| Exact Mass | 272.083740 |
| PSA | 30.21000 |
| LogP | 4.79 |
| Appearance | yellow to tan |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.695 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
Activity & Biological Data
| Additional Information | [1]. Ishida T, Takechi S. β-Naphthoflavone, an exogenous ligand of aryl hydrocarbon receptor, disrupts zinc homeostasis in human hepatoma HepG2 cells. J Toxicol Sci. 2019;44(10):711-720. [2]. Zhu Y, et al. α- and β-Naphthoflavone synergistically attenuate H2O2-induced neuron SH-SY5Y cell damage. Exp Ther Med. 2017 Mar;13(3):1143-1150. |
|---|
Customs & Trade Information
| HS Code | 2914399090 |
|---|---|
| Summary | 2914399090. other aromatic ketones without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of β-Naphthoflavone?
The CAS number of β-Naphthoflavone is 6051-87-2.
What are the molecular formula and molecular weight of β-Naphthoflavone?
β-Naphthoflavone has molecular formula C19H12O2 and molecular weight 272.30 g/mol.
Is β-Naphthoflavone hazardous?
β-Naphthoflavone has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.
What are the upstream and downstream products of β-Naphthoflavone?
For β-Naphthoflavone, Upstream Products: 1-Methylpiperazine, Benzaldehyde, 1-(2-Hydroxynaphthalen-1-yl)ethan-1-one.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "β-Naphthoflavone (CAS 6051-87-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1031558-3 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.