2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide
Also known as: 2-(Diphenylphosphinyl)hydroquinone, 2-diphenylphosphorylbenzene-1,4-diol, 1,4-Benzenediol,2-(diphenylphosphinyl)-, 2,5-Dihydroxytriphenylphosphine Oxide, DHPDPPO, diphenylphosphinyl Hydroquinone, PPQ
2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide (CAS 13291-46-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C18H15O3P and a molecular weight of 310.28400 g/mol. Key properties include a melting point of 214ºC, a boiling point of 573.7ºC at 760 mmHg, a density of 1.34g/cm3 and a flash point of 300.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 13291-46-8
- Jingsj CID
- J-1413465-4
- Molecular Formula
- C18H15O3P
- Molecular Weight
- 310.28400 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 214ºC |
|---|---|
| Boiling Point | 573.7ºC at 760 mmHg |
| Density | 1.34g/cm3 |
| Flash Point | 300.7ºC |
| Exact Mass | 310.07600 |
| PSA | 67.34000 |
| LogP | 2.73720 |
| Vapor Pressure | 9.23E-14mmHg at 25°C |
| Refractive Index | 1.67 |
Customs & Trade Information
| HS Code | 2919900090 |
|---|---|
| Summary | 2919900090 other phosphoric esters and their salts, including lactophosphates; their halogenated, sulphonated, nitrated or nitrosated derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide?
The CAS number of 2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide is 13291-46-8.
What are the molecular formula and molecular weight of 2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide?
2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide has molecular formula C18H15O3P and molecular weight 310.28400 g/mol.
What are the upstream and downstream products of 2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide?
For 2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide, Upstream Products: Diphenylphosphine oxide, 1,4-Benzoquinone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide (CAS 13291-46-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1413465-4 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.