benzo[b]naphtho[1,2-d]furan

Also known as: 1,2-Benzodiphenylene oxide, 7-Oxa-7H-benzo[c]fluorene, gamma-Brasan, naphtho[2,1-b]benzofuran, NSC 109422

benzo[b]naphtho[1,2-d]furan (CAS 205-39-0) 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 45 °C, 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.: 205-39-0
Jingsj CID: J-1503733-9
Molecular Formula: C₁₆H₁₀O
Molecular Weight: 218.250 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	45 °C
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
Storage Conditions	2-8°C

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[1,2-d]furan?

The CAS number of benzo[b]naphtho[1,2-d]furan is 205-39-0.

What are the molecular formula and molecular weight of benzo[b]naphtho[1,2-d]furan?

benzo[b]naphtho[1,2-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: 8/21/2026

How to cite: Jingsj. "benzo[b]naphtho[1,2-d]furan (CAS 205-39-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1503733-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.