Description

(Rp)-2-(tert-Butylthio)-1-(Diphenylphos& CAS NO 503859-61-8 is a high-purity, chiral organophosphorus compound featuring a tert-butylthio substituent. This compound is a critical chiral ligand and intermediate in asymmetric synthesis, enabling the production of enantiomerically pure pharmaceuticals and fine chemicals. It is essential for research and development chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors who require precise stereochemical control.

Application

• As a chiral ligand in asymmetric hydrogenation and other transition metal-catalyzed reactions.
• Key intermediate in the synthesis of novel active pharmaceutical ingredients (APIs) with defined stereochemistry.
• Building block for advanced catalysts used in fine chemical and agrochemical manufacturing.
• Research reagent for developing new methodologies in organic and organometallic chemistry.
• Precursor for specialized ligands used in material science and polymer chemistry.

Basic Information

Product Name	(Rp)-2-(tert-Butylthio)-1-(Diphenylphos& CAS NO 503859-61-8
CAS No.	503859-61-8
Molecular Formula	C22H23PS
Molecular Weight	350.45 g/mol
Synonyms	(R)-tert-Butyl(2-(diphenylphosphino)phenyl)sulfane; (R)-2-(tert-Butylthio)-1-(diphenylphosphino)benzene; (R)-DTBPS; (R)-2-(tert-Butylthio)diphenylphosphinobenzene; (R)-2-(tert-Butylsulfanyl)-1-(diphenylphosphino)benzene; (R)-2-(tert-Butylmercapto)-1-(diphenylphosphino)benzene; (R)-Tert-Butyl 2-(diphenylphosphino)phenyl sulfide; (R)-2-(Diphenylphosphino)phenyl tert-butyl sulfide
EINECS	Contact for details

Quality Control

Our (Rp)-2-(tert-Butylthio)-1-(Diphenylphos& CAS NO 503859-61-8 is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity analysis by HPLC, to ensure it meets the high standards required for advanced synthetic applications. A Certificate of Analysis (COA) detailing identity, purity, and chiral excess is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at 2-8°C for long-term stability. The compound is moisture-sensitive and should be handled in a dry environment.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
Water Content (KF)	≤ 0.5%

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