(-)-1,2-Bis((2R,5R)-2,5-diethylphospholano)benzene

(-)-1,2-双((2R,5R)-2,5-二乙基磷杂环戊烷-1-基)苯

Also known as: (R,R)-Et-DUPHOS, (R,R)-Ethyl-DUPHOS, (-)-1,2-Bis[(2R,5R)-2,5-diethyl-1-phospholanyl]benzene, 1,2-Bis((2R,5R)-2,5-diethylphospholan-1-yl)benzene, (2R,2'R,5R,5'R)-2,2'-5,5'-Tetraethyl-1,1'-(o-phenylene)diphospholane, (2R,5R)-1-[2-[(2R,5R)-2,5-diethylphospholan-1-yl]phenyl]-2,5-diethylphospholane

(-)-1,2-Bis((2R,5R)-2,5-diethylphospholano)benzene (CAS 136705-64-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C22H36P2 and a molecular weight of 362.46900 g/mol. It is also known as (R,R)-Et-DUPHOS, (R,R)-Ethyl-DUPHOS and (-)-1,2-Bis[(2R,5R)-2,5-diethyl-1-phospholanyl]benzene. Key properties include a boiling point of 468.5ºC at 760 mmHg, a density of 1.01 g/mL at 25ºC and a flash point of >230 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

136705-64-1

Jingsj CID

J-17567-6

Molecular Formula

C₂₂H₃₆P₂

Chinese Name

(-)-1,2-双((2R,5R)-2,5-二乙基磷杂环戊烷-1-基)苯

Molecular Weight

362.46900 g/mol

Category

Aromatic Hydrocarbons

Last updated

8/21/2026