(R)-(-)-5,5'-Bis[di(3,5-di-tert-butyl-4-methoxyphenyl)phosphino]-4,4'-bi-1,3-benzodioxole

(R)-(-)-5,5'-双[二(3,5-二叔丁基-4-甲氧基苯基)磷]-4,4'-二-1,3-苯并二氧烷

Also known as: (R)-DTBM-SEGPHOS, (R)-(-)-5,5'-Bis[di(3,5-di-t-butyl-4-methoxyphenyl)phosphino]-4,4'-bi-1,3-benzodioxole, [(4R)-(4,4'-bi-1,3-benzodioxole)-5,5'-diyl]bis[bis(3,5-di-tert-butyl-4-methoxyphenyl)phosphine], 4,4'-Bi-1,3-benzodioxole-5,5'-diylbis{bis[4-methoxy-3,5-bis(2-methyl-2-propanyl)phenyl]phosphine}, MFCD09753003, (R)-(-)-DTBM-SEGPHOS

(R)-(-)-5,5'-Bis[di(3,5-di-tert-butyl-4-methoxyphenyl)phosphino]-4,4'-bi-1,3-benzodioxole (CAS 566940-03-2) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C74H100O8P2 and a molecular weight of 1179.53000 g/mol. It is also known as (R)-DTBM-SEGPHOS, (R)-(-)-5,5'-Bis[di(3,5-di-t-butyl-4-methoxyphenyl)phosphino]-4,4'-bi-1,3-benzodioxole and [(4R)-(4,4'-bi-1,3-benzodioxole)-5,5'-diyl]bis[bis(3,5-di-tert-butyl-4-methoxyphenyl)phosphine]. Key property: a melting point of 128 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
566940-03-2
Jingsj CID
J-54718-5
Molecular Formula
C74H100O8P2
Chinese Name
(R)-(-)-5,5'-双[二(3,5-二叔丁基-4-甲氧基苯基)磷]-4,4'-二-1,3-苯并二氧烷
Molecular Weight
1179.53000 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point128 °C

Frequently Asked Questions

What is the CAS number of (R)-(-)-5,5'-Bis[di(3,5-di-tert-butyl-4-methoxyphenyl)phosphino]-4,4'-bi-1,3-benzodioxole?

The CAS number of (R)-(-)-5,5'-Bis[di(3,5-di-tert-butyl-4-methoxyphenyl)phosphino]-4,4'-bi-1,3-benzodioxole is 566940-03-2.

What are the molecular formula and molecular weight of (R)-(-)-5,5'-Bis[di(3,5-di-tert-butyl-4-methoxyphenyl)phosphino]-4,4'-bi-1,3-benzodioxole?

(R)-(-)-5,5'-Bis[di(3,5-di-tert-butyl-4-methoxyphenyl)phosphino]-4,4'-bi-1,3-benzodioxole has molecular formula C74H100O8P2 and molecular weight 1179.53000 g/mol.

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

Last updated:

How to cite: Jingsj. "(R)-(-)-5,5'-Bis[di(3,5-di-tert-butyl-4-methoxyphenyl)phosphino]-4,4'-bi-1,3-benzodioxole (CAS 566940-03-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-54718-5 (accessed 2026-10-24).

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