Triphenylphosphine
Also known as: triphenylphosphane, PPh3, Ph3P, PP-360
Triphenylphosphine (CAS 603-35-0) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C18H15P and a molecular weight of 262.285 g/mol. Key properties include a melting point of 79-81 °C(lit.), a boiling point of 360.0±11.0 °C at 760 mmHg, a density of 1.132 and a flash point of 181.7±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H317 — May cause an allergic skin reaction and H373 — May cause damage to organs through prolonged exposure. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 603-35-0
- Jingsj CID
- J-44404-6
- Molecular Formula
- C18H15P
- Molecular Weight
- 262.285 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 79-81 °C(lit.) |
|---|---|
| Boiling Point | 360.0±11.0 °C at 760 mmHg |
| Density | 1.132 |
| Flash Point | 181.7±0.0 °C |
| Exact Mass | 262.091125 |
| PSA | 13.59000 |
| LogP | 5.69 |
| Additional Property | 9 (vs air) |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.5918 (20ºC) |
| Additional Property | Insoluble |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H317 — May cause an allergic skin reaction
- H373 — May cause damage to organs through prolonged exposure
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Triphenylphosphine?
The CAS number of Triphenylphosphine is 603-35-0.
What are the molecular formula and molecular weight of Triphenylphosphine?
Triphenylphosphine has molecular formula C18H15P and molecular weight 262.285 g/mol.
Is Triphenylphosphine hazardous?
Triphenylphosphine has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H317 — May cause an allergic skin reaction; H373 — May cause damage to organs through prolonged exposure.
What are the upstream and downstream products of Triphenylphosphine?
For Triphenylphosphine, Upstream Products: Dichlorotriphenylphosphorane, Triphenylphosphine oxide, Piperazine; Downstream Products: [3-(Ethoxycarbonyl)-2-oxopropyl]triphenylphosphonium chloride, (3-Methoxypropyl)triphenylphosphonium bromide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Triphenylphosphine (CAS 603-35-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44404-6 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.