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Acid Orange 7

Acid Orange 7
Acid Orange 7 structure
CAS No.
633-96-5
Chemical Name:
Acid Orange 7
Synonyms
Ao 7;ORANGE1;CI 4600;OrangeⅡ;ORANGE 4;Orange 7;ORANGE I;orangeya;orangeyz;CI 14600
CBNumber:
CB0144029
Molecular Formula:
C16H11N2NaO4S
Formula Weight:
350.32
MOL File:
633-96-5.mol

Acid Orange 7 Properties

Melting point:
164°C
solubility 
Solubility Very soluble in water; very slightly soluble in ethanol
pka
8.26, 11.4(at 25℃)
Colour Index 
15510
form 
Crystalline Powder
color 
Green to blue
PH Range
Amber (7.4) to orange (8.6);Orange (10.2) to red (11.8)
Water Solubility 
116 g/L (30 ºC)
λmax
483nm
Merck 
14,6858
BRN 
3898201
Biological Applications
Cosmetics; wound dressing materials
Major Application
Organic light emitting diodes (OLEDs), nanoparticles, inks, wood preservatives, textiles, hair dyes, cosmetics, wound dressing materials, biofuel cells
CAS DataBase Reference
633-96-5(CAS DataBase Reference)
EPA Substance Registry System
Benzenesulfonic acid, 4-[(2-hydroxy-1-naphthalenyl) azo]-, monosodium salt(633-96-5)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-37/39
WGK Germany  3
RTECS  DB7084000
HS Code  32041200

Acid Orange 7 price More Price(8)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 195235 Orange II sodium salt (Certified by the Biological Stain Commission), Dye content ≥85% 633-96-5 25g $36.5 2018-11-20 Buy
Sigma-Aldrich 195235 Orange II sodium salt (Certified by the Biological Stain Commission), Dye content ≥85% 633-96-5 100g $119 2018-11-20 Buy
TCI Chemical G0158 Acid Orange 7 >97.0%(HPLC) 633-96-5 25g $29 2018-11-22 Buy
TCI Chemical G0158 Acid Orange 7 >97.0%(HPLC) 633-96-5 100g $72 2018-11-22 Buy
Sigma-Aldrich 75370 Orange II sodium salt for microscopy (Hist.), indicator (pH 11.0-13.0) 633-96-5 100g $82 2018-11-20 Buy

Acid Orange 7 Chemical Properties,Uses,Production

Chemical Properties

Orange-red powder

Purification Methods

Purification is as for Orange I. Its solubility in H2O is 40g/L at 25o. [Müller et al. Helv Chim Acta 35 2579 1952.] Also purify it by extracting it with a small volume of cold water, then crystallising it by dissolving in boiling water, cooling to ca 80o, adding two volumes of EtOH and cooling. When cold, the precipitate is filtered off, washed with a little EtOH and dried in air. It can be salted out from aqueous solution with sodium acetate, then repeatedly extracted with EtOH. Meggy and Sims [J Chem Soc 2940 1956], after crystallising the sodium salt twice from water, dissolved it in cold water (11mL/g) and added conc HCl to precipitate the acid dye which was separated by centrifugation, redissolved and again precipitated with acid. After washing the precipitate three times with 0.5M acid, it was dried over NaOH, recrystallised twice from absolute EtOH, washed with a little Et2O, dried over NaOH and stored over conc H2SO4 in the dark. It can then be converted to the pure salt with the calculated amount of NaOH or Na2CO3. [Beilstein 16 IV 408.]

Acid Orange 7 Preparation Products And Raw materials

Raw materials

Preparation Products


Acid Orange 7 Suppliers

Global( 186)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32447 55
Shanghai Zheyan Biotech Co., Ltd.
18017610038
zheyansh@163.com CHINA 3623 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 30001 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 23980 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 sales@jushengtech.com CHINA 28236 58
Xiamen AmoyChem Co., Ltd
+86 592-605 1114
sales@amoychem.com CHINA 6372 58
BOC Sciences
1-631-619-7922
1-631-614-7828 inquiry@bocsci.com United States 20115 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 35440 58
Winchem industrial co limited
0086-574-83851061
0086-574-87083209 info@win-chemical.com CHINA 300 58
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96506 76

View Lastest Price from Acid Orange 7 manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-21 Acid Orange 7
633-96-5
US $1.00 / kg 1kg 97% as request career henan chemical co

Acid Orange 7 Spectrum


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