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Acid Yellow 23

Acid Yellow 23
Acid Yellow 23
Chemical Name:
Acid Yellow 23
y-4;E102;NPY4R;PPYR1;Ay 23;B 3014;c.i.640;l-gelb2;Ins 102;CI 19140
Molecular Formula:
Formula Weight:
MOL File:

Acid Yellow 23 Properties

Melting point:
300 °C
storage temp. 
Colour Index 
Water Solubility 
260 g/L (30 ºC)
Stable. Hygroscopic. Incompatible with strong oxidizing agents.
Biological Applications
Treating hepatitis,periodontal disease,psoriasis
EPA Substance Registry System
1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)- 4-[(4-sulfophenyl)azo]-, trisodium salt(1934-21-0)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xn
Risk Statements  42/43
Safety Statements  22-36/37-45-24/25
WGK Germany  1
RTECS  UQ6400000
Hazardous Substances Data 1934-21-0(Hazardous Substances Data)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled Sensitisation, respiratory Category 1 Danger P261, P285, P304+P341, P342+P311,P501
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P272 Contaminated work clothing should not be allowed out of the workplace.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P284 Wear respiratory protection.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P501 Dispose of contents/container to..…

Acid Yellow 23 price More Price(9)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich T0388 Tartrazine Dye content ≥85% 1934-21-0 100g $51.6 2017-11-08 Buy
Sigma-Aldrich 03322 Tartrazine analytical standard 1934-21-0 25mg $27.8 2017-11-08 Buy
TCI Chemical F0088 Acid Yellow 23 >98.0%(HPLC) 1934-21-0 25g $25 2017-11-08 Buy
TCI Chemical F0088 Acid Yellow 23 >98.0%(HPLC) 1934-21-0 500g $136 2017-11-08 Buy
Alfa Aesar A17682 Tartrazine 1934-21-0 25g $27.5 2017-11-08 Buy

Acid Yellow 23 Chemical Properties,Uses,Production

Chemical Properties

Deep yellow powder


As a dye for wool and silks; as colorant in food, drugs, and cosmetics. In biochemistry as an adsorption-elution indicator for chloride estimations. Tartrazine (otherwise known as E number E102, C.I. 19140, or FD&C Yellow 5) is a synthetic lemon yellow azo dye used as a food coloring. Tartrazine appears to cause the most allergic and intolerance reactions of all the azo dyes, particularly among as thmatics and those with an aspirin intolerance.


ChEBI: An organic sodium salt which is the trisodium salt of tartrazine acid. A synthetic lemon yellow azo dye used as a food colouring.

Acid Yellow 23 Preparation Products And Raw materials

Raw materials

Preparation Products

Acid Yellow 23 Suppliers

Global( 197)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Codow Chemical Co.,Ltd. +86-20-38056109 / 3892 1903
+86-20-6261 9665 China 18462 55
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933; China 96831 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) China 40403 62
3B Pharmachem (Wuhan) International Co.,Ltd. 86-21-50328103 * 801、802、803、804 Mobile:18930552037
86-21-50328109 China 15950 69
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 China 30314 84
TCI (Shanghai) Development Co., Ltd. 800-988-0390
021-67121385 China 22833 81
Energy Chemical 021-58432009 / 400-005-6266
021-58436166-800 China 44197 61
Secco work (Beijing) chemical technology co., LTD 010-69755668;
010-69755668 China 3549 54
Winchem Industrial Co. Ltd 86-574-83851061 86-574-87083208
86-574-87083209 China 513 55
Adamas Reagent, Ltd. 400-600-9262 China 14021 59

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