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(R)-(+)-1,1'-Bi-2-naphthol

(R)-(+)-1,1'-Bi-2-naphthol
(R)-(+)-1,1'-Bi-2-naphthol structure
CAS No.
18531-94-7
Chemical Name:
(R)-(+)-1,1'-Bi-2-naphthol
Synonyms
(R)-BINOL;AKOS 90560;(R,S)-BINOL;(R)-(+)-BINOL;DI-B-NAPHTHOL;BI-2-NAPHTHOL;AURORA KA-7212;2,2'-DINAPHTHOL;(R)-(-)-6,6'-Dibromo-1,1'
CBNumber:
CB3380426
Molecular Formula:
C20H14O2
Formula Weight:
286.32
MOL File:
18531-94-7.mol

(R)-(+)-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 
1.301
refractive index 
36.0 ° (C=1, THF)
storage temp. 
2-8°C
solubility 
dioxane: 50 mg/mL, clear
form 
Powder
color 
white to off-white
optical activity
[α]21/D +34°, c = 1 in THF
Water Solubility 
Insoluble in water. Solubility in THF within almost transparency). Soluble in dioxane 50 mg/mL.
Merck 
14,1226
BRN 
3616837
CAS DataBase Reference
18531-94-7(CAS DataBase Reference)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS06,GHS07,GHS08
Signal word  Danger
Hazard statements  H315-H341-H301-H319-H335
Precautionary statements  P201-P202-P264-P270-P280-P301+P310+P330-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P308+P313-P405-P501-P261-P280a-P304+P340-P501a-P280h-P309-P310-P301+P310-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  29071590
Toxicity LD50 orally in Rabbit: 113 mg/kg

(R)-(+)-1,1'-Bi-2-naphthol price More Price(13)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 246948 (R)-(+)-1,1′-Bi(2-naphthol) 99% 18531-94-7 1g $56.7 2018-11-13 Buy
Sigma-Aldrich 246948 (R)-(+)-1,1′-Bi(2-naphthol) 99% 18531-94-7 5g $91.8 2018-11-13 Buy
TCI Chemical B1142 (R)-(+)-1,1'-Bi-2-naphthol >98.0%(HPLC)(T) 18531-94-7 5g $80 2018-11-22 Buy
TCI Chemical B1142 (R)-(+)-1,1'-Bi-2-naphthol >98.0%(HPLC)(T) 18531-94-7 25g $268 2018-11-22 Buy
Alfa Aesar L08305 (R)-(+)-1,1'-Bi(2-naphthol), 99% 18531-94-7 1g $32 2018-11-13 Buy

(R)-(+)-1,1'-Bi-2-naphthol Chemical Properties,Uses,Production

Chemical Properties

white to light yellow crystal powde

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.]

(R)-(+)-1,1'-Bi-2-naphthol Preparation Products And Raw materials

Raw materials

Preparation Products


(R)-(+)-1,1'-Bi-2-naphthol Suppliers

Global( 333)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 21676 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20672 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32447 55
Nanjing ChemLin Chemical Industry Co., Ltd.
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career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 30001 58
Shanghai Arbor Chemical Co., Ltd.
021-60451682
021-60451683 act@arborchemical.com CHINA 906 58
Chemwill Asia Co.,Ltd.
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86-21-51861608 chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 23980 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 sales@jushengtech.com CHINA 28236 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 35440 58
Alchem Pharmtech,Inc.
8485655694
sales@alchempharmtech.com United States 63729 58

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

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-21 (R)-(+)-1,1'-Bi-2-naphthol
18531-94-7
US $8.00 / kg 1kg 99% 10MT career henan chemical co
2018-12-21 (R)-(+)-1,1'-Bi-2-naphthol
18531-94-7
US $1.00 / kg 1kg 98% 100KG career henan chemical co

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