trans-1,2-bis(diphenylphosphino)ethylene

反-1,2-双(二苯基膦基)乙烯

Also known as: trans-1,2-bis(diphenylphosphino)ethene, (E)-1,2-bis(diphenylphosphino)ethene, (E)-1,2-ethenediylbis(diphenylphosphine), trans-vinylenebis(diphenylphosphine), NSC 132587, MFCD00063219, (E)-ethene-1,2-diylbis(diphenylphosphine), trans-dppen

trans-1,2-bis(diphenylphosphino)ethylene (CAS 983-81-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C26H22P2 and a molecular weight of 396.40000 g/mol. It is also known as trans-1,2-bis(diphenylphosphino)ethene, (E)-1,2-bis(diphenylphosphino)ethene and (E)-1,2-ethenediylbis(diphenylphosphine). Key properties include a melting point of 126-130 °C(lit.), a boiling point of 546.8ºC at 760 mmHg and a flash point of 302.7ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
983-81-3
Jingsj CID
J-9219-1
Molecular Formula
C26H22P2
Chinese Name
反-1,2-双(二苯基膦基)乙烯
Molecular Weight
396.40000 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point126-130 °C(lit.)
Boiling Point546.8ºC at 760 mmHg
Flash Point302.7ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of trans-1,2-bis(diphenylphosphino)ethylene?

The CAS number of trans-1,2-bis(diphenylphosphino)ethylene is 983-81-3.

What are the molecular formula and molecular weight of trans-1,2-bis(diphenylphosphino)ethylene?

trans-1,2-bis(diphenylphosphino)ethylene has molecular formula C26H22P2 and molecular weight 396.40000 g/mol.

Is trans-1,2-bis(diphenylphosphino)ethylene hazardous?

trans-1,2-bis(diphenylphosphino)ethylene has GHS signal word Warning.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "trans-1,2-bis(diphenylphosphino)ethylene (CAS 983-81-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9219-1 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.