(R)-(+)-2,2'-Bis(di-p-tolylphosphino)-1,1'-binaphthyl

Also known as: (R)-TolBINAP, (R)-Tol-BINAP, (R)-p-tolyl-BINAP, 1,1'-Binaphthalene-2,2'-diylbis[bis(4-methylphenyl)phosphine], Phosphine, 1,1'-[1,1'-binaphthalene]-2,2'-diylbis[1,1-bis(4-methylphenyl)-, (R)-(+)-2,2'-Bis(di-p-tolylphosphino)-1,1'-binaphthyl, 98%, (R)-(+)-2,2'-Bis(di-p-tolylphosphino)-1,1'-binaphthyl, 500MG

(R)-(+)-2,2'-Bis(di-p-tolylphosphino)-1,1'-binaphthyl (CAS 99646-28-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C48H40P2 and a molecular weight of 678.779 g/mol. Key properties include a melting point of 255-257 °C, a boiling point of 754.4±60.0 °C at 760 mmHg and a flash point of 438.8±39.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 99646-28-3
Jingsj CID: J-20983-6
Molecular Formula: C₄₈H₄₀P₂
Molecular Weight: 678.779 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point	255-257 °C
Boiling Point	754.4±60.0 °C at 760 mmHg
Flash Point	438.8±39.2 °C
Exact Mass	678.260498
PSA	27.18000
LogP	15.22
Vapor Pressure	0.0±2.4 mmHg at 25°C

Frequently Asked Questions

What is the CAS number of (R)-(+)-2,2'-Bis(di-p-tolylphosphino)-1,1'-binaphthyl?

The CAS number of (R)-(+)-2,2'-Bis(di-p-tolylphosphino)-1,1'-binaphthyl is 99646-28-3.

What are the molecular formula and molecular weight of (R)-(+)-2,2'-Bis(di-p-tolylphosphino)-1,1'-binaphthyl?

(R)-(+)-2,2'-Bis(di-p-tolylphosphino)-1,1'-binaphthyl has molecular formula C48H40P2 and molecular weight 678.779 g/mol.

What are the upstream and downstream products of (R)-(+)-2,2'-Bis(di-p-tolylphosphino)-1,1'-binaphthyl?

For (R)-(+)-2,2'-Bis(di-p-tolylphosphino)-1,1'-binaphthyl, Upstream Products: (S)-(+)-1,1'-Bi-2-naphthol bis(trifluoromethanesulfonate), Chlorodi(p-tolyl)phosphine, 2,2'-dibromo-1,1'-binaphthalene.

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. "(R)-(+)-2,2'-Bis(di-p-tolylphosphino)-1,1'-binaphthyl (CAS 99646-28-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20983-6 (accessed 2026-11-09).

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