Description

1,1-Binaphthalene-2,2-Dithiol, 3,3-Dimethyl- is a specialized organosulfur compound featuring a binaphthyl backbone with dithiol and dimethyl substituents, offering unique steric and electronic properties. This compound is valued for its role as a versatile chiral ligand and building block in advanced synthetic chemistry, particularly in asymmetric catalysis. It is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and materials science industries who require high-purity intermediates for developing novel active ingredients and functional materials.

Application

• As a chiral ligand in asymmetric synthesis for pharmaceuticals and agrochemicals.
• As a key building block for synthesizing complex organic molecules and functional materials.
• In the research and development of catalysts for cross-coupling and other transition metal-catalyzed reactions.
• For the preparation of chelating agents and metal complexes with specific optical or electronic properties.
• In material science applications, such as the development of organic semiconductors or sensors.
• As a reference standard or analytical reagent in quality control and research laboratories.

Basic Information

Item	Detail
Product Name	1,1-Binaphthalene-2,2-Dithiol, 3,3-Dimethyl-
CAS No.	190841-68-0
Molecular Formula	C22H18S2
Molecular Weight	346.50 g/mol
Synonyms	3,3'-Dimethyl-1,1'-binaphthalene-2,2'-dithiol; 3,3'-Dimethyl-[1,1'-binaphthalene]-2,2'-dithiol; 2,2'-Dimercapto-3,3'-dimethyl-1,1'-binaphthyl; BINOL-Derived Dithiol Ligand; (R)- and (S)-3,3'-Dimethyl-BINAS-H2; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our 1,1-Binaphthalene-2,2-Dithiol, 3,3-Dimethyl- is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your R&D and production needs.

Storage

Preserve in a tightly closed container, protected from light. Due to its easily oxidized nature, this material should be stored under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C). Keep the container in a cool, dry, and well-ventilated place, away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder or crystals
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residual Solvents	Complies with ICH guidelines

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