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(2R,3R)-(+)-bis-(Diphenylphosphino)butane

BGC Id:490871840459
CAS No:74839-84-2
Synonyms:(2r,3r)-(+)-2,3-bis(diphenylphosphino)butane (r,r)-chiraphos ; (2r,3r)-butane-2,3-diylbis(diphenylphosphane) ; phosphine,(1,2-dimethyl-1,2-ethanediyl)bis[diphenyl-, [r-(r*,r*)]- ; phosphine,[(1r,2r)-1,2-dimethyl-1,2-ethanediyl]bis[diphenyl- (9ci) ; (2r,3r)-(+)-bis(diphenylphosphino)butane ; (2r,3r)-(+)-bis(diphenylphosphino)butane, 98% (r,r)-chiraphos ; cira ; (r,r)-2,3-bis(diphenylphosphino)butane ; (r,r)-chiraphos ; (2r,3r)-bis(diphenylphosphino)butane ; (2r,3r)-(+)-2,3-bis(diphenyl phosphino)butane ; (r,r)-chiraphos,97% ; (2r,3r)-(+)-bis(diphenylphosphino)butane, (r,r)-chiraphos ; 2,3-bis(diphenylphosphino)butane
Molecular Formula:C28H28P2
Molecular Weight:426.47
EINECS:
Structural Formula

Verified providers in 2026

The following 3 notable providers have been checked and can be recommended.
Chemical-Suppliers
Leap Chem
Molecular Formula: C28H28P2 Molecular Weight: 426.47 Hazard Symbols: Xi WGKGermany: 3 HS Code: 29310099

Chemical-Suppliers
Entegris
Product Number : BIS0509 Category : Ligands

The last intensive check and update was carried out on 2026/07/23.

Identify

Synonyms:
(2r,3r)-(+)-2,3-bis(diphenylphosphino)butane (r,r)-chiraphos ; (2r,3r)-butane-2,3-diylbis(diphenylphosphane) ; phosphine,(1,2-dimethyl-1,2-ethanediyl)bis[diphenyl-, [r-(r*,r*)]- ; phosphine,[(1r,2r)-1,2-dimethyl-1,2-ethanediyl]bis[diphenyl- (9ci) ; (2r,3r)-(+)-bis(diphenylphosphino)butane ; (2r,3r)-(+)-bis(diphenylphosphino)butane, 98% (r,r)-chiraphos ; cira ; (r,r)-2,3-bis(diphenylphosphino)butane ; (r,r)-chiraphos ; (2r,3r)-bis(diphenylphosphino)butane ; (2r,3r)-(+)-2,3-bis(diphenyl phosphino)butane ; (r,r)-chiraphos,97% ; (2r,3r)-(+)-bis(diphenylphosphino)butane, (r,r)-chiraphos ; 2,3-bis(diphenylphosphino)butane
CAS:
74839-84-2
EINECS:
Molecular Formula:
C28H28P2
MDL:
MFCD00075403
SMILES:
CC(C)(C)C(=O)NC1=C(N=C(C=C1)I)Cl

Properties

Molecular Weight:
426.47 g·mol−1
Melting point:
104-109 °C
Boiling point:
529.2 °C at 760 mmHg
Flash point:
291.2 °C
download Download Molfile for :
(2R,3R)-Bis(diphenylphosphino)butane

Suppliers

Skyrun Industrial Co., Ltd.

Company type: Leading producer
Skyrun Industrial Co.Limited, established in 2003, a state-controlled company (By Skyrun Corp. & High Hope) in China, specializing in developing, producing and handing raw pharmaceutical material and intermediates. We have expanded a compositive entity from initially only as a small manufacturer. 2-Bromo-5-methoxybenzonitrile will be also provided by us. We have extensive knowledge of domestic and international pharmaceutical markets. Our working range can be start from small amount in research stage to big bulk for industrial produc ...
Country: P.R.China   Phone: +86-576-84015261   Telefax: +86-576-84015261

Leap Chem Co., Ltd

Company type: Bulk and laboratory supplier
Country: P.R.China
Phone: +852-30606658
LEAPChem, a specialized fine chemicals supplier for research, development and production. LEAPChem provides nearly 50,000 rare and innovative chemical products to support the evolving needs of our customers in research & bulk manufacturing activities. We supply our chemical product 2-Bromo-4-methylpyridine N-oxide. As a highly customer-oriented enterprise, we are committed to providing high-quality customer services and products to our global customers in a cost-effective and efficient manner. Our client list includes many major pharmac ...

Entegris

Entegris Specialty Chemicals offers a wide variety of products, expertise and capabilities that make us the ideal candidate for partnering with you on your product development projects. We have deep technical expertise and application knowledge around many products including organophosphorus, polymers and polymer catalysts, coatings, organic synthesis and stable isotope chemicals. We have pilot to scale production capabilities. We operate with advanced quality systems and hav ...
Company type: Bulk chemical supplier
Country: USA

Safety Information

Hazard Classes:
Risk Codes:
36/37/38 (R)
Safety Codes:
36/37/39-26-37/39 (S)

What other providers are available for CAS 74839-84-2?

In addition to the providers presented here for (2R,3R)-(+)-bis-(Diphenylphosphino)butane with the CAS number 74839-84-2, there are other 9 providers with slightly different product names available for this CAS number.

BIOZOL Diagnostica Vertrieb GmbH | BuGuCh & Partners +5 additional providers that we know from the past
+2 additional providers that we know from the past




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