(-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane

(-)-2,3-O-异亚丙基-2,3-二羟基-1,4-双(二苯基膦)丁烷

Also known as: (-)-DIOP, (R,R)-DIOP, (4R,5R)-DIOP, (-)-2,2-dimethyl-4,5-((diphenylphosphino)dimethyl)dioxolane, (2R,3R)-(-)-1,4-Bis(diphenylphosphino)-2,3-O-isopropylidene-2,3-butanediol, (4R,5R)-(-)-4,5-Bis(diphenylphosphinomethyl)-2,2-dimethyl-1,3-dioxolane, (4R,5R)-(-)-2,2-Dimethyl-4,5-bis((diphenylphosphino)methyl)-1,3-dioxolane, [(4R,5R)-5-(diphenylphosphanylmethyl)-2,2-dimethyl-1,3-dioxolan-4-yl]methyl-diphenylphosphane, (-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane, EINECS 250-984-2, MFCD00014107

(-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane (CAS 32305-98-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C31H32O2P2 and a molecular weight of 498.53200 g/mol. It is also known as (-)-DIOP, (R,R)-DIOP and (4R,5R)-DIOP. Key properties include a melting point of 88 - 90ºC, a boiling point of 590.3ºC at 760mmHg and a flash point of 390.9ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

32305-98-9

Jingsj CID

J-25557-4

Molecular Formula

C₃₁H₃₂O₂P₂

Chinese Name

(-)-2,3-O-异亚丙基-2,3-二羟基-1,4-双(二苯基膦)丁烷

Molecular Weight

498.53200 g/mol

Category

Aromatic Hydrocarbons

Last updated

8/21/2026