(R)-(+)-1,1′-Bi(2-naphthol)
(R)-(+)-1,1′-Bi(2-naphthol) (CAS: 18531-94-7), a chiral organic compound with the molecular formula HOC₁₀H₆C₁₀H₆OH, is a vital component in asymmetric synthesis. Its structure features two naphthol units linked at the 1 and 1′ positions, enabling its use as a privileged chiral ligand. TSS supplies this high-purity chemical, essential for enantioselective catalysis and advanced organic synthesis in research and industrial applications.
- IUPAC
- (+)-2,2′-Dihydroxy-1,1′-dinaphthyl,(R)-(+)-1,1′-Binaphthalene-2,2′-diol,(R)-BINOL
- Synonyms
- (+)-2,2′-Dihydroxy-1,1′-dinaphthyl(R)-(+)-1,1′-Binaphthalene-2,2′-diol(R)-BINOLHOC10H6C10H6OH

Asymmetric Catalysis
Utilised as a chiral ligand or catalyst precursor in enantioselective transformations, promoting the formation of specific stereoisomers in organic reactions.
Chiral Resolution
Employed in the separation of enantiomers through the formation of diastereomeric complexes or derivatives.
Ligand Synthesis
Serves as a fundamental building block for the synthesis of more complex chiral ligands used in coordination chemistry and catalysis.
Material Science
Investigated for potential applications in chiral recognition and in the development of novel chiral materials.
| Molecular weight | 286.32 |
|---|---|
| Linear formula | HOC10H6C10H6OH |
| Assay | ≥99.0% (sum of enantiomers, HPLC) |
| Optical activity | [α]20/D +35.5±2°, c = 1% in THF |
| Optical purity | enantiomeric ratio: ≥99:1 (HPLC) |
| Storage temperature | 2-8°C |
| Melting point | 205-211 °C208-210 °C(lit.) |

Hazard statements
- H301Toxic if swallowed
- H319Causes serious eye irritation
Precautionary statements
- P301IF SWALLOWED
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25-36 |
| Safety statements (S) | 26-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is (R)-(+)-1,1′-Bi(2-naphthol) used for?
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(R)-(+)-1,1′-Bi(2-naphthol) is primarily used in asymmetric synthesis, particularly as a chiral ligand in enantioselective catalysis and for chiral resolution.
What are the CAS number and chemical formula for (R)-(+)-1,1′-Bi(2-naphthol)?
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The CAS number is 18531-94-7, and the linear formula is HOC₁₀H₆C₁₀H₆OH.
What grade and purity does Tech Serve Solutions supply for (R)-(+)-1,1′-Bi(2-naphthol)?
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Tech Serve Solutions supplies (R)-(+)-1,1′-Bi(2-naphthol) with an assay of ≥99.0% (sum of enantiomers, HPLC), and an enantiomeric ratio of ≥99:1 (HPLC). This product is not represented as USP, BP, or EP grade.
How should (R)-(+)-1,1′-Bi(2-naphthol) be handled safely?
+
This compound is toxic if swallowed and causes serious eye irritation. Handle with appropriate personal protective equipment, including eyeshields, face shields, gloves, and P2 respirator cartridges. Ensure adequate ventilation and follow proper spill and disposal procedures.
How is (R)-(+)-1,1′-Bi(2-naphthol) packed, shipped, and exported?
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Products are packed securely for transit according to international shipping regulations. Tech Serve Solutions is experienced in exporting chemicals globally.
How can I request a sample or quote for (R)-(+)-1,1′-Bi(2-naphthol)?
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To request a sample or a quotation, please contact our sales team through the website or by calling our direct line. Please specify the required quantity and your shipping destination.
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