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Product FOB Price Min.Order Supply Ability Supplier
Cas No: 136705-65-2
USD $ 3.0-3.0 / Kilogram 1 Kilogram 1-100 Metric Ton/Month Dayang Chem (Hangzhou) Co.,Ltd. Contact Supplier
New production CAS 136705-65-2 with competitive price
Cas No: 136705-65-2
USD $ 146.0-176.0 / Gram 10 Gram 1000 Kilogram/Day Zhuozhou Wenxi import and Export Co., Ltd Contact Supplier
Cas No: 136705-65-2
USD $ 777.0-888.0 / Kilogram 1 Kilogram 1000 Kilogram/Month Enke Pharma-tech Co.,Ltd. (Cangzhou, China ) Contact Supplier
(+)-1,2-Bis((2R,5R)-2,5-di-i-propylphospholano)benzene (R,R)-i-Pr-DUPHOS
Cas No: 136705-65-2
No Data No Data No Data Antimex Chemical Limied Contact Supplier
Cas No: 136705-65-2
No Data No Data No Data Skyrun Industrial Co.,Ltd Contact Supplier
Cas No: 136705-65-2
No Data No Data No Data Hangzhou Fandachem Co.,Ltd Contact Supplier
Cas No: 136705-65-2
No Data 1 Gram No Data Hangzhou Share Chemical Co., Ltd Contact Supplier
(+)-1,2-Bis((2R,5R)-2,5-di-i-propylphospholano)benzene, 98+% (R,R)-i-Pr-DUPHOS
Cas No: 136705-65-2
No Data No Data No Data Strem Chemicals, Inc. Contact Supplier

136705-65-2 Usage


The DUPHOS family of catalysts is highly efficient for the asymmetric hydrogenation of various substituted acetamidoacrylates and enol acetates yielding products of high enantiomeric excesses. Efficient ligand for the asymmetric hydrogenation of tetrasubstituted enamides. Forms superior catalysts for asymmetric reductive aminations. Catalyst used for the asymmetric hydrogenation of enol phosphonates. A novel enantioselective synthesis of β-amino alcohols and 1,2-diamines.


It is used as ligands like DuPhos and BPE ligands and are highly efficient privileged ligands.


DuPhos and BPE Ligands: Highly Efficient Privileged Ligands

General Description

Optical rotation devation ± 13

136705-65-2 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Alfa Aesar (H60227)  1,2-Bis[(2R,5R)-2,5-diisopropyl-1-phospholanyl]benzene, 97+%    136705-65-2 250mg 2197.0CNY Detail
Alfa Aesar (H60227)  1,2-Bis[(2R,5R)-2,5-diisopropyl-1-phospholanyl]benzene, 97+%    136705-65-2 1g 7912.0CNY Detail
Aldrich (668524)  (+)-1,2-Bis[(2R,5R)-2,5-diisopropylphospholano]benzene  kanata purity 136705-65-2 668524-100MG 1,339.65CNY Detail
Aldrich (668524)  (+)-1,2-Bis[(2R,5R)-2,5-diisopropylphospholano]benzene  kanata purity 136705-65-2 668524-500MG 4,820.40CNY Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017


1.1 GHS Product identifier

Product name (2R,5R)-1-[2-[(2R,5R)-2,5-di(propan-2-yl)phospholan-1-yl]phenyl]-2,5-di(propan-2-yl)phospholane

1.2 Other means of identification

Product number -
Other names (+)-1,2-Bis[(2R,5R)-2,5-diisopropylphospholano]benzene

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

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