(R)-(+)-5,5'-Bis(diphenylphosphino)-4,4'-bi-1,3-benzodioxole

(R)-(+)-5,5'-双(二苯基膦)-4,4'-二-1,3-苯并二茂

Also known as: (R)-SEGPHOS, (R)-(+)-SEGPHOS, (R)-SegPhos, SEGPHOS, ((5,6),(5',6')-bis(methylenedioxy)biphenyl-2,2'-diyl)bis(diphenylphosphine), 5,5'-Bis(diphenylphosphanyl)-4,4'-bibenzo[d][1,3]dioxole, [4(R)-(4,4'-bi-1,3-benzodioxole)-5,5'-diyl]bis[diphenylphosphine], Phosphine, 1,1'-[(4R)-[4,4'-bi-1,3-benzodioxole]-5,5'-diyl]bis[1,1-diphenyl-

(R)-(+)-5,5'-Bis(diphenylphosphino)-4,4'-bi-1,3-benzodioxole (CAS 244261-66-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C38H28O4P2 and a molecular weight of 610.574 g/mol. It is also known as (R)-SEGPHOS, (R)-(+)-SEGPHOS and (R)-SegPhos. Key properties include a melting point of 168-172ºC, a boiling point of 715.4±60.0 °C at 760 mmHg and a flash point of 488.8±33.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

244261-66-3

Jingsj CID

J-7994-9

Molecular Formula

C₃₈H₂₈O₄P₂

Chinese Name

(R)-(+)-5,5'-双(二苯基膦)-4,4'-二-1,3-苯并二茂

Molecular Weight

610.574 g/mol

Category

Aromatic Hydrocarbons

Last updated

8/21/2026