(-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene

Also known as: (R,R)-MeDuPHOS, (R,R)-Methyl-DuPhos, 1,2-Bis[(2R,5R)-2,5-dimethyl-1-phospholanyl]benzene, (2R,2'R,5R,5'R)-2,2',5,5'-Tetramethyl-1,1'-(o-phenylene)diphospholane, (2R,5R)-1-[2-[(2R,5R)-2,5-dimethylphospholan-1-yl]phenyl]-2,5-dimethylphospholane, 1,2-Bis((2R,5R)-2,5-dimethylphospholan-1-yl)benzene

(-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene (CAS 147253-67-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C18H28P2 and a molecular weight of 306.36200 g/mol. Key properties include a melting point of 66-76ºC, a boiling point of 415ºC at 760 mmHg and a flash point of 216.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 147253-67-6
Jingsj CID: J-18581-9
Molecular Formula: C₁₈H₂₈P₂
Molecular Weight: 306.36200 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	66-76ºC
Boiling Point	415ºC at 760 mmHg
Flash Point	216.3ºC
Exact Mass	306.16700
PSA	27.18000
LogP	5.04260
Vapor Pressure	1.03E-06mmHg at 25°C

Frequently Asked Questions

What is the CAS number of (-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene?

The CAS number of (-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene is 147253-67-6.

What are the molecular formula and molecular weight of (-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene?

(-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene has molecular formula C18H28P2 and molecular weight 306.36200 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "(-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene (CAS 147253-67-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18581-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.