Tartrazine
Tartrazine (CAS 1934-21-0), with the molecular formula C16H9N4Na3O9S2, is a synthetic yellow azo dye. Also known by its Colour Index name, C.I. 19140, it is widely utilised for its vibrant colouration properties. Tartrazine is primarily employed as a food colouring agent, a component in inks and other dye applications, and finds use in chemical synthesis, particularly in the development of complex molecules and chiral building blocks.
- IUPAC
- Acid Yellow 23
- Synonyms
- Acid Yellow 23C.I. 19140Yellow 5
Food Colourant
Tartrazine is extensively used as a yellow food dye, imparting a bright yellow hue to various food products, beverages, and confectionery items. Its Colour Index number is 19140.
Ink and Dye Formulation
The compound serves as a key component in the formulation of inks, including writing and printing inks, as well as in textile dyeing and other colouring applications.
Chemical Synthesis
Tartrazine is recognised for its utility in chemical synthesis, acting as a valuable intermediate and building block. It is particularly relevant in the fields of asymmetric synthesis and the creation of complex molecular structures.
Laboratory Reagent
As a well-defined chemical compound, Tartrazine is employed in laboratory settings for research and analytical purposes. Its properties make it suitable for various chemical investigations.
| Molecular weight | 534.36 |
|---|---|
| Empirical formula | C16H9N4Na3O9S2 |
| Composition | Dye content, ≥85% |
Hazard statements
- H317May cause an allergic skin reaction
- H334May cause allergy or asthma symptoms if inhaled
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P342
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 42/43 |
| Safety statements (S) | 22-36/37-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Colour Index Number | 19140 |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Tartrazine used for?
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Tartrazine (CAS 1934-21-0) is primarily used as a yellow food colouring agent (C.I. 19140), in inks, dyes, and for chemical synthesis, including asymmetric synthesis and as a chiral building block.
What are the CAS number and molecular formula for Tartrazine?
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The CAS number for Tartrazine is 1934-21-0, and its molecular formula is C16H9N4Na3O9S2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tartrazine with a dye content of ≥85%. We do not represent this product as USP, BP, or EP grade.
How should Tartrazine be handled safely?
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Handling Tartrazine requires appropriate personal protective equipment, including a dust mask (type N95 or equivalent), eyeshields, face shields, and gloves. It may cause allergic skin reactions (H317) and respiratory irritation (H334). Work in a well-ventilated area and avoid dust formation.
Is Tartrazine a controlled substance?
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The provided safety data does not indicate that Tartrazine is a controlled or scheduled substance.
How is Tartrazine packed, shipped, and exported?
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Tech Serve Solutions offers Tartrazine for export globally. Specific packing and shipping details are confirmed upon order, adhering to international regulations.
How can I request a sample or quote for Tartrazine?
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To request a sample or a quote for Tartrazine, please contact our sales department via the website or provide your requirements through the product inquiry form.
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