Bis(diphenylphosphino)acetylene
双(二苯基膦)乙炔
Also known as: 1,2-Bis(diphenylphosphino)ethyne, 1,2-Bis(diphenylphosphino)acetylene, Bis(diphenylphosphino)ethyne, Ethynylenebis(diphenylphosphine), ((Diphenylphosphino)ethynyl)diphenylphosphine, 2-Diphenylphosphanylethynyl(diphenyl)phosphane, Phosphine, 1,1'-(1,2-ethynediyl)bis[1,1-diphenyl-, Phosphine, 1,2-ethynediylbis[diphenyl-
Bis(diphenylphosphino)acetylene (CAS 5112-95-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C26H20P2 and a molecular weight of 394.38500 g/mol. It is also known as 1,2-Bis(diphenylphosphino)ethyne, 1,2-Bis(diphenylphosphino)acetylene and Bis(diphenylphosphino)ethyne. Key properties include a melting point of 86-88 °C(lit.), a boiling point of 529.6ºCat 760 mmHg and a flash point of 291.4ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5112-95-8
- Jingsj CID
- J-1510986-0
- Molecular Formula
- C26H20P2
- Chinese Name
- 双(二苯基膦)乙炔
- Molecular Weight
- 394.38500 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 86-88 °C(lit.) |
|---|---|
| Boiling Point | 529.6ºCat 760 mmHg |
| Flash Point | 291.4ºC |
| Exact Mass | 394.10400 |
| PSA | 27.18000 |
| LogP | 5.17060 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 Bis(diphenylphosphino)acetylene?
The CAS number of Bis(diphenylphosphino)acetylene is 5112-95-8.
What are the molecular formula and molecular weight of Bis(diphenylphosphino)acetylene?
Bis(diphenylphosphino)acetylene has molecular formula C26H20P2 and molecular weight 394.38500 g/mol.
Is Bis(diphenylphosphino)acetylene hazardous?
Bis(diphenylphosphino)acetylene has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Bis(diphenylphosphino)acetylene?
For Bis(diphenylphosphino)acetylene, Upstream Products: trans-1,2-Dichloroethylene, Chlorodiphenylphosphine, Trichloroethylene; Downstream Products: Tetraphenyldiphosphine, trans-1,2-bis(diphenylphosphino)ethylene, cis-1,2-Bis(diphenylphosphino)ethylene.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Bis(diphenylphosphino)acetylene (CAS 5112-95-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1510986-0 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.