Description

(R)-(-)-1,1'-Bi-2-Naphthyl Dimethanesulfonate is a high-purity chiral auxiliary and resolving agent of significant importance in asymmetric synthesis. This compound is valued for its ability to induce chirality in the synthesis of complex organic molecules, enabling the production of enantiomerically pure intermediates. It is a critical material for research and development laboratories and production facilities in the pharmaceutical, agrochemical, and advanced materials sectors, where precise stereochemical control is paramount.

Application

• Chiral Auxiliary in Asymmetric Synthesis: Used to control stereoselectivity in key carbon-carbon and carbon-heteroatom bond-forming reactions.
• Pharmaceutical Intermediate: Employed in the research and scale-up synthesis of enantiomerically pure active pharmaceutical ingredients (APIs).
• Resolution Agent: Facilitates the separation of racemic mixtures into their individual enantiomers for analytical and preparative purposes.
• Catalyst Ligand Precursor: Serves as a building block for synthesizing sophisticated chiral ligands used in metal-catalyzed reactions.
• Agrochemical Synthesis: Applied in the development of chiral pesticides and herbicides with improved efficacy and environmental profiles.
• Material Science Research: Used in the creation of chiral polymers and liquid crystals with specific optical properties.

Basic Information

Product Name	(R)-(-)-1,1'-Bi-2-Naphthyl Dimethanesulfonate
CAS No.	871231-48-0
Molecular Formula	C24H20O6S2
Molecular Weight	468.54 g/mol
Synonyms	(R)-BINOL Dimethanesulfonate; (R)-1,1'-Bi-2-naphthol Dimethanesulfonate; (R)-(-)-1,1'-Binaphthyl-2,2'-diyl Dimethanesulfonate; (R)-2,2'-Bis(methanesulfonyloxy)-1,1'-binaphthyl; (R)-BINOL-Dimesylate; (R)-BINOL-OMs; (R)-BINOL Mesylate; (R)-1,1'-Binaphthalene-2,2'-diyl bis(methanesulfonate)
EINECS	Contact for details

Quality Control

Our (R)-(-)-1,1'-Bi-2-Naphthyl Dimethanesulfonate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity (HPLC), chemical purity (HPLC), and identity confirmation (IR, NMR) to ensure it meets the high standards required for advanced synthetic applications. Certificates of Analysis (COA) with detailed chromatographic data are provided for every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0% ee
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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