What is Tartrazine Lake (Tartrazine Lake) (E 102)?
Tartrazine Lake (Tartrazine Lake) is a synthetic food colorant used to give or restore yellow color to foods. It is defined in the Turkish Food Codex under code E 102 and Color Index (CI) 19140.
Where is Tartrazine Lake (Tartrazine Lake) Used?
It is used for coloring in food categories permitted by regulations. For permitted categories and maximum amounts, please refer to the table below.
Pharmaceutical / Food Industry Usage
- Lake (aluminum lake) form is water-insoluble and is used as a coating colorant in pharmaceuticals and dietary supplements (for tablet, dragee, capsule, and supplement product coatings).
- Synthetic food dyes can also be used in pharmaceuticals depending on their specification. If the product specification includes USP, NF, or Ph.Eur designations, the product's compliance with pharmaceutical standards is verified against these standards.
- There is no ban on use in dietary supplements; they can be used within the limits established for foods.
In Which Foods and at What Levels is Tartrazine Lake (Tartrazine Lake) Used? — Legal Limits (Turkish Food Codex)
E 102 is a Group III colorant; combined maximums apply in many categories (e.g., 150 mg/kg in flavored creams). The lake form is water-insoluble; the aluminum limit is 15 mg/kg (footnote 74).
| Food category | Maximum amount | Footnote |
|---|---|---|
| Flavored creams (Group III) | 150 mg/kg | — |
| Flavored processed cheese | 100 mg/kg | (33) |
| Pre-cooked crustaceans | 250 mg/kg | (36) |
| Aluminum lake aluminum content | 15 mg/kg | (74) |
Note: "quantum satis" means use as required by good manufacturing practice without a specific numerical upper limit. The total amount of Group III colorants must not exceed the combined maximum established for the group.
E-Number, Color, and Technical Properties
- E code: E 102 · Color Index: CI 19140 · Color: yellow
- CAS No: 1934-21-0 · Chemical Formula: C16H9N4Na3O9S2
- Forms: aluminum lake (water-insoluble)
Storage, Shelf Life, and Re-test Period
For our products, the recommended re-test period is 3 years; for some manufacturers, it may extend up to 5 years and varies by manufacturer. The CoA / specification document for the relevant batch shall be used for the exact re-test date.
Technical Documents and Supply — Asuka Kimya
For SDS, TDS, CoA, and pharmacopoeia (USP/NF/Ph.Eur) compliance information for Tartrazine Lake (Tartrazine Lake) (E 102), as well as supply conditions, please contact Asuka Kimya.