CAS 1934-21-0: Tartrazine
Description:Tartrazine, also known as E102, is a synthetic lemon yellow azo dye commonly used as a food coloring agent. It is characterized by its bright yellow hue and is soluble in water, making it suitable for various applications in the food and beverage industry, including soft drinks, candies, and baked goods. Chemically, tartrazine is derived from coal tar and is known for its stability under acidic conditions, although it can degrade in alkaline environments. It has a molecular formula of C16H9N3NaO9S and a molecular weight of approximately 404.4 g/mol. Tartrazine is often used in combination with other colorants to achieve desired shades. However, it has been associated with allergic reactions in some individuals, particularly those with aspirin sensitivity or asthma. Regulatory agencies, such as the FDA and EFSA, have established acceptable daily intake levels for tartrazine, ensuring its safe use in food products. Despite its widespread use, there is ongoing debate regarding its potential health effects, prompting some consumers to seek alternatives.
Formula:C16H12N4O9S2·3Na
InChI:InChI=1S/C16H12N4O9S2.3Na/c21-15-13(18-17-9-1-5-11(6-2-9)30(24,25)26)14(16(22)23)19-20(15)10-3-7-12(8-4-10)31(27,28)29;;;/h1-8,13H,(H,22,23)(H,24,25,26)(H,27,28,29);;;
InChI key:InChIKey=RHKOFJVEQBGAMP-UHFFFAOYSA-N
SMILES:[Na].O=C(O)C1=NN(C(=O)C1N=NC2=CC=C(C=C2)S(=O)(=O)O)C3=CC=C(C=C3)S(=O)(=O)O
- Synonyms:
- Tartraphenine
- Tartrazin
- Trinatrium-5-hydroxy-1-(4-sulfophenyl)-4-(4-sulfophenylazo)pyrazol-3-carboxylat
- Dihydro-5-oxo-1-(4-sulfophenyl)-4-((4-sulfophenyl)azo)-1H-pyrazole-3-carboxylic acid, trisodium salt
- trisodium 5-hydroxy-1-(4-sulfonatophenyl)-4-[(E)-(4-sulfonatophenyl)diazenyl]-1H-pyrazole-3-carboxylate
- C.I. Acid Yellow 23
- C.I. Food Yellow 4
- Tartrazine
- Filter Yellow
- Tartrazine C.I.19140
- See more synonyms
- Food Yellow No.4
- C.I. Acid Yellow 23, trisodium salt
- Trisodium 1-(4-sulfonatophenyl)-4-(4-sulfonatophenylazo)-5-pyrazolone-3-carboxylate
- C.I. 640
- trisodium (4E)-5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)hydrazono]-4,5-dihydro-1H-pyrazole-3-carboxylate
- C.I. Acid Yellow 23, trisodium salt (VAN) (8CI)
- 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-, trisodium salt
- Tartrazine
- 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-Pyrazole-3-carboxylic acid, trisodium salt
- FD&C Yellow No. 5
- Trisodium 1-(4-sulfophenyl)-4-((4-sulfophenyl)azo)-1H-pyrazole-3-carboxylate
- C.I. Acid Yellow 23
- 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[2-(4-sulfophenyl)diazenyl]-, sodium salt (1:3)
- C.I. 19140
- Tartrazine C
- trisodium (4Z)-5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)hydrazono]-4,5-dihydro-1H-pyrazole-3-carboxylate
- C.I. Acid Yellow 23, trisodium salt
- Acid Yellow 23
- Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-((4-sulfophenyl)azo)-, trisodium salt
![1H-Pyrazole-3-carboxylic acid,4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-, trisodi…](https://static.cymitquimica.com/products/IN/thumb/DA00I2XZ.jpg)
