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ROSOLIC ACID

ROSOLIC ACID
ROSOLIC ACID structure
CAS No.
603-45-2
Chemical Name:
ROSOLIC ACID
Synonyms
AURIN;RosoL;AURINE;CORALLIN;CI 43800;AURIN GR;Nsc 7805;Aurin 555;Rosolic aci;CI NO 43800
CBNumber:
CB0296269
Molecular Formula:
C19H14O3
Formula Weight:
290.31
MOL File:
603-45-2.mol

ROSOLIC ACID Properties

Melting point:
309°C (decompose)
Boiling point:
372.4°C (rough estimate)
Density 
1.2497 (rough estimate)
refractive index 
1.4200 (estimate)
storage temp. 
Store at room temperature.
solubility 
Solubility Practically insoluble in water, benzene; freely soluble in ethanol
pka
6.98(at 25℃)
form 
Crystalline Powder
Colour Index 
43800
color 
Red-brown to brownish-red
PH Range
6.8(YELLOW)--8.2(RED)
Water Solubility 
Soluble in alcohol, sodium hydroxide, potassium hydroxide and strong acids. Insoluble in water.
λmax
534.6nm, 479.5nm, 482nm
Merck 
14,881
BRN 
2055205
Stability:
Stable. Incompatible with strong oxidizing agents.
Major Application
electrorheological materials, films patterning, antireflective coatings, thermochromic materials, photoresists, film patterning, recording materials, lithium battery, semiconductors, printing materials, inks, corrosion inhibitors, adhesives, drugs, detecting viable cells, treatment of Alzheimer’s disease
CAS DataBase Reference
603-45-2
EWG's Food Scores
1
FDA UNII
85N4AK3JAU
EPA Substance Registry System
2,5-Cyclohexadien-1-one, 4-[bis(4-hydroxyphenyl)methylene]- (603-45-2)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P405-P501a-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
Hazard Codes  Xi
Risk Statements  36/37/38-36/38
Safety Statements  26-36-37/39
WGK Germany  3
TSCA  Yes
HS Code  29145090

ROSOLIC ACID price More Price(6)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 861324 p-Rosolic acid Dye content 85% 603-45-2 25g $101 2020-08-18 Buy
Sigma-Aldrich 861324 p-Rosolic acid Dye content 85% 603-45-2 100g $348 2020-08-18 Buy
TCI Chemical A0598 Pararosolic Acid 603-45-2 25g $59 2020-06-24 Buy
Alfa Aesar B21737 Rosolic acid 603-45-2 25g $60.2 2020-06-24 Buy
Alfa Aesar B21737 Rosolic acid 603-45-2 100g $162 2020-06-24 Buy

ROSOLIC ACID Chemical Properties,Uses,Production

Chemical Properties

red crystals or powder

Uses

activates heme oxygenase, anti-oxidative stress, inhibits DNA fragmentation

Uses

A red coloring medium made from phenol or carbolic acid. It is soluble in alcohol and ether but insoluble in water. When fabrics were steeped in this solution, the color was nonactinic and therefore safe for darkrooms, windows, and doorways. Aurin was also mixed with water-soluble gums and brushed on the backs of collodion and silver bromide gelatin plates as an antihalation layer.

Purification Methods

It forms green crystals with a metallic luster, but the colour depends on the solvent used. When recrystallised from brine (saturated aqueous NaCl) acidified with HCl, it forms red needles, but when recrystallised from EtO/AcOH, the crystals have a beetle iridescent green colour. It has been recrystallised from Me2CO (although it dissolves slowly), methyl ethyl ketone, 80-95% AcOH and from AcOH/*C6H6. An aqueous KOH solution is golden yellow, and a 70% H2SO4 solution is deep red in colour. An alternative purification is to dissolve this triphenylmethane dye in 1.5% of aqueous NH3, filter, and heat to 70-80o, then acidify with dilute AcOH by adding it slowly with vigorous stirring, whereby the aurin separates as a brick-red powder or as purplish crystals depending on the temperature and period of heating. Filter off the solid, wash it with H2O and a little dilute AcOH, then H2O again. Stir this solid with Et2O to remove any ketones and allow it to stand overnight in the Et2O, then filter and dry it in air then in a vacuum. [Gomberg & Snow J Am Chem Soc 47 202 1925, Baines & Driver J Chem Soc 123 1216 1923, UV: Burawoy Chem Ber 64 462 1941, Beilstein 8 IV 2646.]

ROSOLIC ACID Preparation Products And Raw materials

Raw materials

Preparation Products


ROSOLIC ACID Suppliers

Global( 135)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 21717 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22622 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 30024 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 35490 58
CONIER CHEM AND PHARMA LIMITED
86-18523575427
sales@conier.com CHINA 47486 58
Zhuozhou Wenxi import and Export Co., Ltd
+8613111626072
+8613111626072 zzwenxi@126.com CHINA 7486 58
Hefei TNJ Chemical Industry Co.,Ltd.
0551-65418671
0551-65418697 sales@tnjchem.com CHINA 37442 58
Amadis Chemical Company Limited
0086-571-89925085
0086-571-89925065 sales@amadischem.com China 132149 58
J & K SCIENTIFIC LTD. 400-666-7788 010-82848833-
86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96504 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 400-660-8290 21-61259100-
86-21-61259102 sh@meryer.com China 40268 62

View Lastest Price from ROSOLIC ACID manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-25 Aurin
603-45-2
US $1.00 / kg 1kg 95%-99% 1000kg career henan chemical co

ROSOLIC ACID Spectrum


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