Triphenylphosphine sulfide
Also known as: Triphenylphosphine sulphide, Phosphine sulfide, triphenyl-, triphenyl(sulfanylidene)-lambda5-phosphane, TPS, Triphenylphosphorus sulfide, triphenylphosphinemonosulfide
Triphenylphosphine sulfide (CAS 3878-45-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C18H15PS and a molecular weight of 294.350 g/mol. Key properties include a melting point of 161-163 °C(lit.), a boiling point of 428.7±28.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 213.1±24.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3878-45-3
- Jingsj CID
- J-32018-4
- Molecular Formula
- C18H15PS
- Molecular Weight
- 294.350 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 161-163 °C(lit.) |
|---|---|
| Boiling Point | 428.7±28.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 213.1±24.0 °C |
| Exact Mass | 294.063202 |
| PSA | 41.90000 |
| LogP | 4.10 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.657 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Frequently Asked Questions
What is the CAS number of Triphenylphosphine sulfide?
The CAS number of Triphenylphosphine sulfide is 3878-45-3.
What are the molecular formula and molecular weight of Triphenylphosphine sulfide?
Triphenylphosphine sulfide has molecular formula C18H15PS and molecular weight 294.350 g/mol.
Is Triphenylphosphine sulfide hazardous?
Triphenylphosphine sulfide has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.
What are the upstream and downstream products of Triphenylphosphine sulfide?
For Triphenylphosphine sulfide, Downstream Products: Triphenylphosphine selenide, Diphenylphosphine, 4-Nitrobenzaldehyde.
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 sulfide (CAS 3878-45-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32018-4 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.