![Molecular structure of Benzo[b]naphtho[2,3-d]furan (CAS 243-42-5)](/images/chem_structures_svg/262/243-42-5.svg)
Benzo[b]naphtho[2,3-d]furan
Also known as: b-Brazan, Benzo[b]diphenyleneoxide, Benzonaphthofuran, Naphtho[2,3-b][1]benzofuran, NSC 59787, beta-Brazane, Benzo[b]naphtho[2,3-d]furan, tech., 90%, MFCD00022295, EINECS 205-955-9, naphtho[2,3-b]benzofuran
Benzo[b]naphtho[2,3-d]furan (CAS 243-42-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C16H10O and a molecular weight of 218.250 g/mol. Key properties include a melting point of 202-207ºC, a boiling point of 394.1±11.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 208.3±6.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 243-42-5
- Jingsj CID
- J-38154-4
- Molecular Formula
- C16H10O
- Molecular Weight
- 218.250 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 202-207ºC |
|---|---|
| Boiling Point | 394.1±11.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 208.3±6.1 °C |
| Exact Mass | 218.073166 |
| PSA | 13.14000 |
| LogP | 5.35 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.763 |
Customs & Trade Information
| HS Code | 2932999099 |
|---|---|
| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. 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 Benzo[b]naphtho[2,3-d]furan?
The CAS number of Benzo[b]naphtho[2,3-d]furan is 243-42-5.
What are the molecular formula and molecular weight of Benzo[b]naphtho[2,3-d]furan?
Benzo[b]naphtho[2,3-d]furan has molecular formula C16H10O and molecular weight 218.250 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. "Benzo[b]naphtho[2,3-d]furan (CAS 243-42-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38154-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.