Tartrazine is a synthetic lemon-yellow azo dye used primarily as a food coloring. It is the trisodium salt of tartrazine acid and also serves as a histological dye.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Orange G
Acid dye for wool and silk
Direct Red 13
Direct dye
Direct Black 38
direct dye for textiles
Naphthol Green B
histological dye for collagen staining
Aluminum, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-pyrazole-3-carboxylic acid complex
Lake pigment for coloring
Reactive Yellow 17
Reactive dye for textile coloration
Sudan Yellow 3G
solvent dye
Acid yellow 34
acid dye for textile coloring
The international HS code for Tartrazine (CAS 1934-21-0) is 3204.12.
3204.12
3204 12 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
trisodium;5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)diazenyl]-4H-pyrazole-3-carboxylate
UJMBCXLDXJUMFB-UHFFFAOYSA-K
C1=CC(=CC=C1N=NC2C(=NN(C2=O)C3=CC=C(C=C3)S(=O)(=O)[O-])C(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+]
Sourcing Tartrazine?
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