Description

(-)-Menphos CAS NO 43077-31-2 is a high-purity, chiral organophosphorus ligand of significant importance in asymmetric synthesis. Its primary value lies in its ability to act as a highly effective catalyst or ligand in transition metal-catalyzed reactions, enabling the production of enantiomerically pure compounds. This makes it a critical material for research and development laboratories and production facilities within the pharmaceutical, agrochemical, and fine chemical industries seeking to create single-isomer active ingredients with superior efficacy and safety profiles.

Application

• As a chiral ligand in asymmetric hydrogenation reactions for pharmaceutical intermediates.
• Catalyst component in enantioselective C-C and C-X bond-forming cross-coupling reactions.
• Key reagent in the synthesis of enantiomerically pure agrochemicals and flavors/fragrances.
• Use in academic and industrial R&D for developing new asymmetric catalytic processes.
• Potential application in material science for creating chiral polymers or surfaces.

Basic Information

Product Name	(-)-Menphos
CAS No.	43077-31-2
Molecular Formula	C17H21P
Molecular Weight	256.32 g/mol
Synonyms	(-)-(R)-1-[(S)-2-(Diphenylphosphino)ferrocenyl]ethyldicyclohexylphosphine; (R)-(S)-PPF-PCy2; (R)-(S)-Josiphos Cy; (R)-1-[(S)-2-(Diphenylphosphino)ferrocenyl]ethyldicyclohexylphosphine; Josiphos SL-J009-1; (-)-1-[(S)-2-(Diphenylphosphino)ferrocenyl]ethyldicyclohexylphosphine; ChiraPhos
EINECS	Contact for details

Quality Control

Our (-)-Menphos is manufactured under strict quality control protocols to ensure high chemical purity and chiral integrity, critical for reproducible catalytic performance. Each batch is characterized by advanced analytical techniques including NMR, HPLC, and chiral analysis. A comprehensive Certificate of Analysis (COA) detailing purity, enantiomeric excess, and other critical parameters is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place at 2-8°C to minimize oxidation and moisture absorption. Allow the container to reach room temperature before opening to prevent condensation.

Specification

Item	Specification
Appearance	Orange to red-brown crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Loss on Drying	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.