ChemicalBook
Chinese Japanese Germany Korea

(S)-(-)-1,1'-Bi-2-naphthol

(S)-(-)-1,1'-Bi-2-naphthol
(S)-(-)-1,1'-Bi-2-naphthol structure
CAS No.
18531-99-2
Chemical Name:
(S)-(-)-1,1'-Bi-2-naphthol
Synonyms
(S)-BINOL;AKOS 90560;(R,S)-BINOL;98.0%(T&S-BINAPHTHOL;BI-2-NAPHTHOL;DI-B-NAPHTHOL;(S)-(-)-BINOL;AURORA KA-7212;2,2'-DINAPHTHOL
CBNumber:
CB6380427
Molecular Formula:
C20H14O2
Formula Weight:
286.32
MOL File:
18531-99-2.mol

(S)-(-)-1,1'-Bi-2-naphthol Properties

Melting point:
215-218 °C
Boiling point:
388.69°C (rough estimate)
alpha 
-35.5 º (c=1, THF)
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) 
GHS06,GHS08,GHS07
Signal word  Warning
Hazard statements  H301-H315-H341-H319-H335
Precautionary statements  P280h-P309-P310-P201-P202-P264-P270-P280-P301+P310+P330-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P308+P313-P405-P501-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
10
TSCA  No
HazardClass  6.1
PackingGroup  III
HS Code  29072990

(S)-(-)-1,1'-Bi-2-naphthol price More Price(17)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.14774 (R)-(+)-1,1′-Binaphthyl-2,2′-diol for synthesis 18531-99-2 1 g $30.15 2021-03-22 Buy
Sigma-Aldrich 246956 (S)-(?)-1,1′-Bi(2-naphthol) 99% 18531-99-2 1g $44.3 2021-03-22 Buy
Sigma-Aldrich 8.14774 (R)-(+)-1,1′-Binaphthyl-2,2′-diol for synthesis 18531-99-2 10 g $68.63 2021-03-22 Buy
Sigma-Aldrich 246956 (S)-(?)-1,1′-Bi(2-naphthol) 99% 18531-99-2 5g $113 2021-03-22 Buy
TCI Chemical B1100 (S)-(-)-1,1'-Bi-2-naphthol >98.0%(HPLC)(T) 18531-99-2 5g $103 2021-03-22 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

Preparation Products


(S)-(-)-1,1'-Bi-2-naphthol Suppliers

Global( 368)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-66670886
info@dakenchem.com China 21032 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29961 58
Shanghai Arbor Chemical Co., Ltd.
021-60451682
021-60451683 act@arborchemical.com CHINA 906 58
Shenzhen Nexconn Pharmatechs Ltd
15013857715
admin@nexconn.com CHINA 3004 58
Jinan Carbotang Biotech Co.,Ltd.
+86 15866703830
figo.gao@foxmail.com CHINA 2778 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Chongqing Chemdad Co.,Ltd
+86-19923101450
sales@chemdad.com CHINA 4000 58
Changzhou Ditong Chemical Co.,Ltd
0519-88299272
info@edengenechem.com CHINA 2124 58
BOC Sciences
1-631-485-4226
1-631-614-7828 inquiry@bocsci.com United States 19753 58

View Lastest Price from (S)-(-)-1,1'-Bi-2-naphthol manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-07-02 (S)-(-)-1,1"-Bi(2-naphthol) 99%
18531-99-2
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
2019-07-06 (S)-(-)-1,1'-Bi-2-naphthol
18531-99-2
US $2.00 / KG 1KG 99% Customise career henan chemical co

18531-99-2((S)-(-)-1,1'-Bi-2-naphthol)Related Search:


Copyright 2017 © ChemicalBook. All rights reserved