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(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;S-BINAPHTHOL;(S)-(-)-BINOL;BI-2-NAPHTHOL;DI-B-NAPHTHOL;AURORA KA-7212;2,2'-DINAPHTHOL;S-1,1-Bi-2-Naphtho
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
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. 
2-8°C
solubility 
dioxane: 50 mg/mL, clear
form 
Crystals or Crystalline Powder
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
  • Hazard and Precautionary Statements (GHS)
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
HazardClass  6.1
PackingGroup  III
HS Code  29072990
Symbol(GHS):
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
H341 Suspected of causing genetic defects Germ cell mutagenicity Category 2 Warning P201,P202, P281, P308+P313, P405,P501
Precautionary statements:
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P309 IF exposed or if you feel unwell:
P310 Immediately call a POISON CENTER or doctor/physician.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P405 Store locked up.
P501 Dispose of contents/container to..…

(S)-(-)-1,1'-Bi-2-naphthol price More Price(15)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 246956 (S)-(?)-1,1′-Bi(2-naphthol) 99% 18531-99-2 1g $40.4 2018-11-13 Buy
Sigma-Aldrich 246956 (S)-(?)-1,1′-Bi(2-naphthol) 99% 18531-99-2 5g $122 2018-11-13 Buy
TCI Chemical B1100 (S)-(-)-1,1'-Bi-2-naphthol >98.0%(HPLC)(T) 18531-99-2 5g $99 2018-11-22 Buy
TCI Chemical B1100 (S)-(-)-1,1'-Bi-2-naphthol >98.0%(HPLC)(T) 18531-99-2 25g $298 2018-11-22 Buy
Alfa Aesar L08423 (S)-(-)-1,1'-Bi(2-naphthol), 99% 18531-99-2 5g $225 2018-11-13 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( 310)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 22084 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20763 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32607 55
Shanghai Arbor Chemical Co., Ltd.
021-60451682
021-60451683 act@arborchemical.com CHINA 906 58
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608 chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 24095 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 19978 58
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 saleschina@alfa-asia.com China 30273 84
Lianyungang Chiral Chemical Co., Ltd +86 518-83616958 : +86 519-82884848: (0)13861113988
+86 518-83616928 : +86 519-82835618 postmaster@chiral-compounds.com China 20 74
HUNAN CHEMFISH SCIENTIFIC CO.,LTD 0731-85567275 / 17773132550/ 18932438858
QQ 3406412061 / 1956471433 sales02@chemfish.com China 476 58
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96815 76

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

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-08-09 (S)-(-)-1,1'-Bi-2-naphthol
18531-99-2
US $2.00 / KG 1KG 99% Customise career henan chemical co

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