Manufacturer Supply with High Purity and Stable Quality
1,1'-Bi-2-naphthol CAS 602-09-5
(R)-(+)-1,1'-Bi-2-naphthol; (R)-(+)-BINOL; CAS 18531-94-7
(S)-(-)-1,1'-Bi-2-naphthol; (S)-(-)-BINOL; CAS 18531-99-2
(R)-(-)-1,1'-Binaphthyl-2,2'-diyl Hydrogen Phosphate; (R)-(-)-BNP Acid; CAS 39648-67-4
(S)-(+)-1,1'-Binaphthyl-2,2'-diyl Hydrogen Phosphate; (S)-(+)-BNP Acid; CAS 35193-64-7
Chiral Compounds, High Quality, Commercial Production
| Chemical Name |
(S)-(-)-1,1'-Bi-2-naphthol |
| Synonyms |
(S)-(-)-BINOL |
| CAS Number |
18531-99-2 |
| CAT Number |
RF-CC217 |
| Stock Status |
In Stock, Production Scale Up to Tons |
| Molecular Formula |
C20H14O2 |
| Molecular Weight |
286.32 |
| Brand |
Ruifu Chemical |
| Item |
Specifications |
| Appearance |
White Crystals or Crystalline Powder |
| Specific Rotation |
-33.5°～-38.0° (C=1 in THF) |
| Melting Point |
208.0～210.0℃ |
| Loss on Drying |
≤0.50% |
| Chiral Assay |
e.e ≥99.0% (HPLC) Chiral Column |
| Chemical Assay |
≥99.0% (HPLC) |
| Test Standard |
Enterprise Standard |
| Usage |
Chiral Compounds; Pharmaceutical Intermediates |
Package: Bottle, Aluminium foil bag, Cardboard Drum, 25kg/Drum, or according to customer's requirement.
Storage Condition: Store in sealed containers at cool and dry place; Protect from light, moisture and pest infestation.
Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer and supplier of (S)-(-)-1,1'-Bi-2-naphthol (CAS: 18531-99-2) with high quality, it belongs to pharmaceutical intermediate and can be used for the synthesis of chiral intermediates and chiral drugs.
Shanghai Ruifu Chemical Co., Ltd. plays an important role in the chiral chemistry, the company is committed to the production of chiral compounds. Our products are widely praised by customers.
(S)-(-)-1,1'-Bi-2-naphthol (CAS: 18531-99-2) is an organic compound that is often used as a ligand for transition-metal catalysed asymmetric synthesis. BINOL has axial chirality and the two enantiomers can be readily separated and are stable toward racemisation. The specific rotation of the two enantiomers is ±35.5° (C=1 in THF). BINOL is a precursor for another chiral ligand called BINAP. (S)-BINOL can be prepared directly from an asymmetric oxidative coupling of 2-naphthol with copper(II) chloride. The chiral ligand in this reaction is (S)-(+)-amphetamine. (S)-(-)-1,1'-Bi-2-naphthol (CAS: 18531-99-2) is used in the stereoselective synthesis of Peloruside A. Also used in the synthesis of BINAP-based aminophosphines and used for synthesis of various chiral reagents.