9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene

4,5-双二苯基膦-9,9-二甲基氧杂蒽

Also known as: Xantphos, 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene, 9,9-Dimethyl-4,5-bis(diphenylphosphino)-9H-xanthene

9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene (CAS 1265-03-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C39H32OP2 and a molecular weight of 578.618302 g/mol. It is also known as Xantphos, 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene and 9,9-Dimethyl-4,5-bis(diphenylphosphino)-9H-xanthene. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1265-03-8
Jingsj CID: J-1590736-1
Molecular Formula: C₃₉H₃₂OP₂
Chinese Name: 4,5-双二苯基膦-9,9-二甲基氧杂蒽
Molecular Weight: 578.618302 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene?

The CAS number of 9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene is 1265-03-8.

What are the molecular formula and molecular weight of 9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene?

9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene has molecular formula C39H32OP2 and molecular weight 578.618302 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene (CAS 1265-03-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1590736-1 (accessed 2026-10-25).

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