(S)-(-)-1,1'-Bi-2-naphthol
![(S)-(-)-1,1'-Bi-2-naphthol Structure](CAS/GIF/18531-99-2.gif)
- CAS No.
- 18531-99-2
- Chemical Name:
- (S)-(-)-1,1'-Bi-2-naphthol
- Synonyms
- (S)-BINOL;(S)-1,1'-BI-2-NAPHTHOL;(S)-(-)-BINOL;(R,S)-BINOL;S-BINAPHTHOL;1,1'-BINAPHTHYL-2,2'-DIOL;(-)-Binol;AKOS 90560;98.0%(T&BI-2-NAPHTHOL
- CBNumber:
- CB6380427
- Molecular Formula:
- C20H14O2
- Molecular Weight:
- 286.32
- MOL File:
- 18531-99-2.mol
- MSDS File:
- SDS
- Modify Date:
- 2023/12/24 21:24:35
Melting point | 215-218 °C |
---|---|
alpha | -35.5 º (c=1, THF) |
Boiling point | 388.69°C (rough estimate) |
Density | 1 g/cm3 |
refractive index | -36.0 ° (C=1, THF) |
storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
solubility | dioxane: 50 mg/mL, clear |
form | Crystals or Crystalline Powder |
pka | 8.29±0.50(Predicted) |
color | White to light gray |
optical activity | [α]22/D 34°, c = 1 in THF |
Merck | 14,1226 |
BRN | 3592999 |
CAS DataBase Reference | 18531-99-2(CAS DataBase Reference) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | ![]() GHS07 |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
Signal word | Warning | |||||||||
Hazard statements | H315-H319 | |||||||||
Precautionary statements | P302+P352-P305+P351+P338 | |||||||||
Hazard Codes | T,Xi | |||||||||
Risk Statements | 25-36-36/37/38 | |||||||||
Safety Statements | 26-45-24/25-36 | |||||||||
RIDADR | UN 2811 6.1/PG 3 | |||||||||
WGK Germany | 3 | |||||||||
RTECS | DU3106100 | |||||||||
F | 10 | |||||||||
TSCA | No | |||||||||
HazardClass | 6.1 | |||||||||
PackingGroup | III | |||||||||
HS Code | 29072990 | |||||||||
NFPA 704 |
|
(S)-(-)-1,1'-Bi-2-naphthol price More Price(10)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich(India) | 246956 | (S)-(−)-1,1′-Bi(2-naphthol) 99% | 18531-99-2 | 1G | ₹3290.8 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 246956 | (S)-(−)-1,1′-Bi(2-naphthol) 99% | 18531-99-2 | 25G | ₹4817.13 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 246956 | (S)-(−)-1,1′-Bi(2-naphthol) 99% | 18531-99-2 | 5G | ₹5282.6 | 2022-06-14 | Buy |
ALFA India | ALF-L08423-14 | (S)-(-)-1,1'-Bi(2-naphthol), 99% | 18531-99-2 | 25g | ₹13272 | 2022-05-26 | Buy |
ALFA India | ALF-L08423-06 | (S)-(-)-1,1'-Bi(2-naphthol), 99% | 18531-99-2 | 5g | ₹9218 | 2022-05-26 | Buy |
(S)-(-)-1,1'-Bi-2-naphthol Chemical Properties,Uses,Production
Chemical Properties
white to light yellow crystal powde
Uses
Chiral ligand.
Purification Methods
Dissolve it in cold 2.5N NaOH, extract with CH2Cl2, and acidify with 5% HCl. Collect the white precipitate and recrystallise it from aqueous EtOH and dry it in a vacuum [Akimoto & Yamada Tetrahedron 27 5999 1971]. It is optically stable in dioxane-water (100o/24hours). Racemisation: 72% in 1.2N HCl at 100o/24hours and 68% in 0.67M KOH in BuOH at 118o/23hours [Kyba et al. J Am Chem Soc 95 2693 1973]. It has also been crystallised from *C6H6 (solubility is 1%) using Norite or aqueous EtOH after chromatography through silica gel, eluting with Me2CO/*C6H6. [Kyba et al. J Org Chem 42 4173 1977; see also Brussee & Jansen Tetrahedron Lett 24 3261 1983, Akimoto & Yamada Tetrahedron 27 5999 1971, Beilstein 6 IV 7020.]
(S)-(-)-1,1'-Bi-2-naphthol Preparation Products And Raw materials
Raw materials
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chevron_rightPreparation Products
Supplier | Tel | Country | ProdList | Advantage | Inquiry |
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JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
Evans Fine Chem | +91-9821340302 +91-9821340302 | Maharashtra, India | 286 | 58 | Inquiry |
SOLFYN INTERNATIONAL LLP | +91-9321772608 +91-9321772608 | Mumbai, India | 105 | 58 | Inquiry |
ASM Organics | 91-9866122393 | Andhra Pradesh, India | 1188 | 58 | Inquiry |
Loba Chemie Pvt., Ltd. | 91-22-66636663 | Maharashtra, India | 766 | 58 | Inquiry |
S.Zhaveri Pharmakem Pvt. Ltd | -66607687 | Mumbai, India | 58 | 58 | Inquiry |
Chemrich Fine Chemicals Pvt., Ltd. | 91-40-23607444 | Hyderabad, India | 400 | 58 | Inquiry |
Azole Rasayanas India Private Limited | 91-40-29707735 | Hyderabad, India | 684 | 58 | Inquiry |
Souvenier Chemicals | 08048372762Ext 645 | Mumbai, India | 396 | 58 | Inquiry |
Arene Life Sciences Limited | 09866147700 | Hyderabad, India | 166 | 58 | Inquiry |
Supplier | Advantage |
---|---|
JSK Chemicals | 58 |
Evans Fine Chem | 58 |
SOLFYN INTERNATIONAL LLP | 58 |
ASM Organics | 58 |
Loba Chemie Pvt., Ltd. | 58 |
S.Zhaveri Pharmakem Pvt. Ltd | 58 |
Chemrich Fine Chemicals Pvt., Ltd. | 58 |
Azole Rasayanas India Private Limited | 58 |
Souvenier Chemicals | 58 |
Arene Life Sciences Limited | 58 |
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