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tartrazine
Sign in to saveAlso known as Yellow 5
Tartrazine is a synthetic lemon yellow azo dye primarily used as a food coloring. It is also known as E number E102, C.I. 19140, FD&C Yellow 5, Yellow 5 Lake, Acid Yellow 23, Food Yellow 4, and trisodium 1-(4-sulfonatophenyl)-4-(4-sulfonatophenylazo)-5-pyrazolone-3-carboxylate.
Chemical data
- Formula
- C16H9N4Na3O9S2
- Molecular weight
- 534.4 g/mol
- IUPAC name
- trisodium;5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)diazenyl]-4H-pyrazole-3-carboxylate
- SMILES
- 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+]
- InChIKey
- UJMBCXLDXJUMFB-UHFFFAOYSA-K
- Polar surface area
- 229 Ų
- H-bond donors
- 0
- H-bond acceptors
- 12
- Formal charge
- 0
via PubChem
Research
1,037 papers- Tartrazine sensitivity.American family physician · 1990
- Tartrazine.Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association · 1988
- Tartrazine exclusion for allergic asthma.The Cochrane database of systematic reviews · 2001
- [Tartrazine-induced rhinitis?].Archivos de bronconeumologia · 1995
- Tartrazine.Canadian Medical Association journal · 1982
via PubMed
~12 min read
Encyclopedic overview
28 sectionsContents
- Production
- History
- Products containing tartrazine
- Foods
- Personal care and cosmetics products
- Medications
- Other products
- Chemistry
- Potential health effects on humans
- Food intolerance, sensitivity, and allergies
- Asthma
- Food intolerance and ADHD-like behavior
- Reproductive
- Regulation
- North America
- Canada
- United States
- Europe
- European Union
- Austria and Germany
- Norway
- United Kingdom
- Other uses
- 3D printing
- Tartrazine-enabled tissue clearing
- See also
- References
- External links
Tartrazine is a synthetic lemon yellow azo dye primarily used as a food coloring. It is also known as E number E102, C.I. 19140, FD&C Yellow 5, Yellow 5 Lake, Acid Yellow 23, Food Yellow 4, and trisodium 1-(4-sulfonatophenyl)-4-(4-sulfonatophenylazo)-5-pyrazolone-3-carboxylate.
Tartrazine is a commonly used coloring agent all over the world, mainly for yellow, and can also be used with brilliant blue FCF (FD&C Blue 1, E133) or green S (E142) to produce various green shades. It serves as a dye for wool and silks, a colorant in food, drugs and cosmetics and an adsorption-elution indicator for chloride estimations in biochemistry.
Excerpted from Wikipedia’s “tartrazine” article, available under the CC BY-SA 4.0 licence.