Acid Yellow 23
-
- Category :
Dyestuffs and Pigments
- CAS NO : 1934-21-0
- EC NO : 217-699-5
- Molecular Formula : C16H9N4Na3O9S2
- Main Specifications :
- Synonyms : C.I. 640;C.I. 19140;C.I. Acid Yellow 23;C.I. Acid Yellow 23, trisodium salt;C.I. Food Yellow 4;C.I. Acid Yellow 23, trisodium salt (VAN) (8CI);Tartrazine;4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-Pyrazole-3-carboxylic acid, trisodium salt;Acid Yellow 23;Dihydro-5-oxo-1-(4-sulfophenyl)-4-((4-sulfophenyl)azo)-1H-pyrazole-3-carboxylic acid, trisodium salt;FD&C Yellow No. 5;Filter Yellow;Food Yellow No.4;Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-((4-sulfophenyl)azo)-, trisodium salt;Tartrazine C;Tartrazine C.I.19140;Trisodium 1-(4-sulfonatophenyl)-4-(4-sulfonatophenylazo)-5-pyrazolone-3-carboxylate;Trisodium 1-(4-sulfophenyl)-4-((4-sulfophenyl)azo)-1H-pyrazole-3-carboxylate;trisodium (4Z)-5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)hydrazono]-4,5-dihydro-1H-pyrazole-3-carboxylate;trisodium (4E)-5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)hydrazono]-4,5-dihydro-1H-pyrazole-3-carboxylate;trisodium 5-hydroxy-1-(4-sulfonatophenyl)-4-[(E)-(4-sulfonatophenyl)diazenyl]-1H-pyrazole-3-carboxylate;
Molecular Structure:
Product description:
Packaging & Delivery
Packaging Details: 25KG Iron Drums , Cartons and Woven bags
Delivery Detail: 15 days after the payment.
Specifications
CAS no:1934-21-0
Appearance:yellow powder
More than 10 years chemical trading experience
Basic Information:
Product Name:
Tartrazine
Synonyms:
C.I. 19140;
C.I. Acid Yellow 23;
C.I. Acid Yellow 23, trisodium salt;
C.I. Food Yellow 4;
C.I. Acid Yellow 23, trisodium salt (VAN) (8CI);
Tartrazine;
CAS RN.:
1934-21-0
EINECS:
217-699-5
Molecular Weight:
534.3634
Molecular Formula:
C16H9N4Na3O9S2
Melting Point(°C):
300°C
Water Solubility:
260 g/L (30°C)
Specifications:
CAS no
1934-21-0
Appearance
yellow powder
Light fastness
6-7
wash fastness
5
mosture
1%max
Sweat fastness
5
Hot pressing
4-5
Applications
Mainly used in all kind of naturalfibers like wool, cotton and silk as well as to synthetics like polyesters, acrylicand rayon. But they are not substantive to cellulosic fibers. They are alsoused in paints, inks, plastics and leather.
Packing
25KG Iron Drums , Cartons and Woven bags
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