Description

(+)-Menphos CAS NO 32511-22-1 is a high-purity, chiral organophosphorus compound widely utilized as a versatile ligand in asymmetric synthesis. Its primary value lies in enabling highly enantioselective catalytic transformations, which are critical for producing single-isomer intermediates in pharmaceutical and fine chemical manufacturing. This product is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable, high-performance chiral auxiliaries to develop novel active ingredients and specialty chemicals.

Application

• As a chiral ligand in asymmetric hydrogenation and carbon-carbon bond-forming reactions.
• Key component in the synthesis of enantiomerically pure pharmaceutical intermediates and active pharmaceutical ingredients (APIs).
• Catalyst modifier in the production of specialty agrochemicals and flavors & fragrances.
• Used in academic and industrial research for developing new catalytic methodologies.
• Employed in the synthesis of advanced materials requiring specific chiral configurations.
• Facilitates stereoselective synthesis in process chemistry for scale-up and optimization.

Basic Information

Product Name	(+)-Menphos
CAS No.	32511-22-1
Molecular Formula	C17H21P
Molecular Weight	256.32 g/mol
Synonyms	(R)-(-)-1-[(S)-2-(Diphenylphosphino)ferrocenyl]ethyldimethylamine; (R)-(-)-1-[(S)-2-(Diphenylphosphino)ferrocenyl]ethyldimethylamine; (R)-1-[(S)-2-(Diphenylphosphino)ferrocenyl]ethyldimethylamine; Josiphos SL-J009-1; (R)-(+)-1-[(S)-2-(Diphenylphosphino)ferrocenyl]ethyldicyclohexylphosphine; (R)-(+)-1-[(S)-2-(Diphenylphosphino)ferrocenyl]ethyl-di-tert-butylphosphine; Menphos ligand.
EINECS	Contact for details

Quality Control

Our (+)-Menphos is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chiral purity assessment by HPLC, identity confirmation by NMR and IR spectroscopy, and quantification of residual solvents and metals. A Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. Due to its sensitivity to oxidation and light, prolonged exposure to air or direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Orange to red crystalline powder or solid
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0% ee
Loss on Drying	≤ 0.5%
Residual Solvents (GC)	Meets ICH Q3C guidelines

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