![Molecular structure of 3,3-Diphenyl-3H-naphtho[2,1-b]pyran (CAS 4222-20-2)](/images/chem_structures_svg/178/4222-20-2.svg)
3,3-Diphenyl-3H-naphtho[2,1-b]pyran
Also known as: 3,3-Diphenyl-3H-benzo[f]chromene, 3,3-Diphenyl-3H-benzo[f][1]benzopyran, 2,2-Diphenyl-5,6-benzo(2H)chromene, 3,3-Diphenyl-3H-naphtho[2,1-b]pyran, 3,3-Diphenylbenzo[f]chromene
3,3-Diphenyl-3H-naphtho[2,1-b]pyran (CAS 4222-20-2) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C25H18O and a molecular weight of 334.410 g/mol. Key properties include a melting point of 160ºC, a boiling point of 511.1±50.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 265.1±25.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4222-20-2
- Jingsj CID
- J-1285-1
- Molecular Formula
- C25H18O
- Molecular Weight
- 334.410 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 160ºC |
|---|---|
| Boiling Point | 511.1±50.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 265.1±25.8 °C |
| Exact Mass | 334.135773 |
| PSA | 9.23000 |
| LogP | 6.89 |
| Vapor Pressure | 0.0±1.3 mmHg at 25°C |
| Refractive Index | 1.679 |
Customs & Trade Information
| HS Code | 2902909090 |
|---|---|
| Summary | 2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 3,3-Diphenyl-3H-naphtho[2,1-b]pyran?
The CAS number of 3,3-Diphenyl-3H-naphtho[2,1-b]pyran is 4222-20-2.
What are the molecular formula and molecular weight of 3,3-Diphenyl-3H-naphtho[2,1-b]pyran?
3,3-Diphenyl-3H-naphtho[2,1-b]pyran has molecular formula C25H18O and molecular weight 334.410 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. "3,3-Diphenyl-3H-naphtho[2,1-b]pyran (CAS 4222-20-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1285-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.