Phenylphosphinic acid
Also known as: Benzenephosphinic acid, Benzenephosphonous acid, Phenylphosphonous acid, Hydroxyphenylphosphine oxide, Phosphinic acid, P-phenyl-, Phosphonous acid, phenyl-
Phenylphosphinic acid (CAS 1779-48-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H7O2P and a molecular weight of 142.092 g/mol. Key properties include a melting point of 83-85 °C(lit.), a boiling point of 285.1±23.0 °C at 760 mmHg and a flash point of 126.2±22.6 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1779-48-2
- Jingsj CID
- J-29626-4
- Molecular Formula
- C6H7O2P
- Molecular Weight
- 142.092 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 83-85 °C(lit.) |
|---|---|
| Boiling Point | 285.1±23.0 °C at 760 mmHg |
| Flash Point | 126.2±22.6 °C |
| Exact Mass | 142.018372 |
| PSA | 60.77000 |
| LogP | -0.59 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Additional Property | 7.7 g/100 mL (25 ºC) |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2916399090 |
|---|---|
| Summary | 2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Phenylphosphinic acid?
The CAS number of Phenylphosphinic acid is 1779-48-2.
What are the molecular formula and molecular weight of Phenylphosphinic acid?
Phenylphosphinic acid has molecular formula C6H7O2P and molecular weight 142.092 g/mol.
Is Phenylphosphinic acid hazardous?
Phenylphosphinic acid has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of Phenylphosphinic acid?
For Phenylphosphinic acid, Upstream Products: Iodobenzene, Bromobenzene, Dichlorophenylphosphine; Downstream Products: Phosphoryl chloride, Phosphorus trichloride, Phenylphosphonic dichloride.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Phenylphosphinic acid (CAS 1779-48-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29626-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.