Description

(S)-(+)-1,1'-Bi-2-Naphthyl Dimethanesulfonate is a high-purity chiral chemical intermediate and ligand precursor of significant importance in asymmetric synthesis. This compound matters because it serves as a crucial building block for creating enantiomerically pure catalysts and pharmaceuticals, enabling precise control over stereochemistry in complex molecular constructions. Industries that need it include pharmaceutical R&D for active pharmaceutical ingredient (API) development, fine chemical manufacturers producing specialty catalysts, and academic research laboratories focused on advanced organic and organometallic chemistry.

Application

• Asymmetric Catalysis: As a precursor for chiral BINOL-derived ligands and catalysts used in enantioselective transformations.
• Pharmaceutical Intermediates: In the synthesis of enantiomerically pure drug candidates and active pharmaceutical ingredients (APIs).
• Material Science: For the development of chiral polymers and advanced functional materials with specific optical properties.
• Analytical Chemistry: As a chiral selector or stationary phase modifier in high-performance liquid chromatography (HPLC) for enantiomer separation.
• Academic & Industrial Research: A valuable tool compound for methodological development in organic synthesis and catalysis studies.

Basic Information

Product Name	(S)-(+)-1,1'-Bi-2-Naphthyl Dimethanesulfonate
CAS No.	871231-47-9
Molecular Formula	C24H20O6S2
Molecular Weight	468.54 g/mol
Synonyms	(S)-BINOL Dimethanesulfonate; (S)-(+)-1,1'-Bi-2-naphthol Dimethanesulfonate; (S)-1,1'-Binaphthalene-2,2'-diyl Dimethanesulfonate; (S)-BINOL-Dimesylate; (S)-2,2'-Bis(methanesulfonyloxy)-1,1'-binaphthyl; (S)-H8-BINOL Dimethanesulfonate (if applicable); (S)-BINOL-OMs; (S)-BINOL Dimesylate Ester
EINECS	Contact for details

Quality Control

Our (S)-(+)-1,1'-Bi-2-Naphthyl Dimethanesulfonate is produced under strict quality management protocols to ensure batch-to-batch consistency and high enantiomeric purity. Quality assurance includes comprehensive analytical testing via HPLC, chiral HPLC, 1H/13C NMR, and specific rotation measurement. A Certificate of Analysis (COA) detailing purity, enantiomeric excess (ee), and identity is provided with each shipment to support your quality and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep the container tightly sealed in a dry environment to prevent moisture absorption. This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0% ee
Specific Rotation [α]D20	Contact for details
Loss on Drying	≤ 0.5%

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