Description

2,2'-Binaphthyl-1,1'-Diol (CAS NO 604-60-4) is a high-purity chiral diol compound, also known as BINOL, which serves as a fundamental building block in asymmetric synthesis. Its value lies in its ability to act as a versatile and highly effective chiral ligand or catalyst, enabling the production of enantiomerically pure compounds. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require precise stereochemical control in their synthetic processes.

Application

• As a chiral ligand in asymmetric catalysis for pharmaceutical intermediates.
• As a key precursor for synthesizing chiral phosphoric acid catalysts.
• In the development of chiral molecular recognition systems and sensors.
• For the synthesis of functionalized materials with specific optical properties.
• As a resolving agent in the separation of enantiomers.
• In academic and industrial R&D for novel asymmetric transformations.

Basic Information

Product Name	2,2'-Binaphthyl-1,1'-Diol
CAS No.	604-60-4
Molecular Formula	C₂₀H₁₄O₂
Molecular Weight	286.32 g/mol
Synonyms	BINOL; 1,1'-Bi-2-naphthol; (R)-(+)-1,1'-Bi-2-naphthol (for enantiomer); (S)-(-)-1,1'-Bi-2-naphthol (for enantiomer); 2,2'-Dihydroxy-1,1'-binaphthyl; [1,1'-Binaphthalene]-2,2'-diol; VANOL
EINECS	210-068-9

Quality Control

Our 2,2'-Binaphthyl-1,1'-Diol is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity (enantiomeric excess) and chemical purity determination by HPLC, to ensure it meets the stringent requirements for advanced synthetic applications. Certificates of Analysis (COA) with detailed chromatographic data are provided and available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This compound is easily oxidized; for long-term storage, consider an inert atmosphere (e.g., nitrogen or argon). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Chiral Purity (ee, HPLC)	≥ 99.0% (for enantiopure grades)
Melting Point	205 - 210 °C
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.