【Chemical Name】 1,1'-Bi-2-naphthol
【Other Name】 BINOL | (±)-2,2'-Dihydroxy-1,1'-binaphthyl | (±)-1,1'-Binaphthalene-2,2'-diol | 2,2'-Dinaphthol | (±)-2,2'-Dihydroxydinaphthyl
【CAS No.】 602-09-5
【Molecular Formula】 C₂₀H₁₄O₂
【Molecular Weight】 286.32–286.33 g/mol
【Product properties】
| Property | Value |
| :--- | :--- |
| Appearance | White to light yellow crystalline powder to crystal |
| Purity (GC) | ≥99.0% |
| Purity (HPLC) | ≥98.0% – ≥99.5% (high purity grade) |
| Melting Point | 214–221°C (literature) |
| Boiling Point | N/A (decomposes) |
| Density | 1.301 g/mL |
| Solubility | Insoluble in water; soluble in THF (50 mg/mL), dioxane, methanol, ethanol; slightly soluble in toluene |
| pKa | ~8.0 (25°C) |
| Physical State (20°C) | Solid |
Structural data:
- Hydrogen Bond Donors: 2
- Hydrogen Bond Acceptors: 2
- Rotatable Bonds: 1
【Storage】
Store sealed in a cool, dark, dry place. Recommended storage temperature: Room temperature (<15°C) or 0–8°C. Air and light sensitive.
【Packing】
Available in 1g, 5g, 10g, 25g, 100g, 250g, 500g, 1kg, and bulk packaging upon request.
【Application】
- Asymmetric Synthesis: Serves as a privileged chiral ligand and auxiliary widely used in asymmetric catalysis, including alkynylation, enantioselective Diels-Alder reactions, asymmetric Michael additions, C-C and C-heteroatom bond formation. Enables the synthesis of enantiomerically pure compounds essential for pharmaceuticals and agrochemicals.
- Organic Electronics: Used as a building block in the development of organic light-emitting diodes (OLEDs) and organic solar cells, enhancing device efficiency and stability.
- Polymer Chemistry: Acts as a monomer for chiral conjugated polymers, covalent organic frameworks (COFs), and functional materials with improved thermal and mechanical properties.
- Catalysis: Functions as a ligand or precursor for chiral catalysts in various organic transformations.
- Analytical Chemistry: Employed as a reagent for the detection and quantification of metal ions.
【Product Specification】
| Item | Specification |
| :--- | :--- |
| Purity (GC) | ≥99.0% |
| Purity (HPLC) | ≥98.0% – ≥99.5% |
| Optical Purity (enantiopure grade) | ≥98.0 ee% |
| Appearance | White to light yellow powder/crystal |
| Melting Point | 214–221°C |
| Loss on Drying | ≤0.2% |
| Water Solubility | Insoluble |
| MDL Number | MFCD00004068 |
| EC Number | 210-014-0 |
| UN Number | UN2811 |
| Hazard Class | 6.1 |
| HS Code | 2907.29.9090 / 2907290090 |
| GHS Signal Word | Danger (H301 - Toxic if swallowed) |