E105 · Colours
Fast Yellow AB
An obsolete synthetic dye, not authorised for food use. Little studied by modern standards.
- Category
- Colours
- Vegan
- Yes
- Vegetarian
- Yes
What it is
Fast Yellow AB is a synthetic azo dye, withdrawn from food use decades ago.
How it is used in food
None — it is no longer used as a food additive.
Commonly found in- Confectionery
- Soft drinks
- Jellies and desserts
Health and safety
No specific risk at dietary intake has been established. It also lacks a modern safety assessment.
Not authorised for food use in the EU.
Regulatory status
| Region | Status | Notes |
|---|---|---|
| Australia & New Zealand FSANZ |
Permitted | Permitted under the FSANZ Food Standards Code. |
| European Union EFSA / European Commission |
Not approved | Not on the EU authorised list of food additives (Annex II). |
| United States FDA (Food and Drug Administration) |
Permitted | Authorised for food use by the FDA (often GRAS for standard additives). |
Identification on labels
- E-number
- E105
Worth knowing
It is not permitted in food in either the EU or the United States.
Conclusion
A highly toxic synthetic dye banned for food use.
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Open the appEntry last reviewed 2026-08-04.
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