What is Brown HT Lake (E 155)?
Brown HT Lake is a synthetic food colorant used to give or restore brown color to foods. It is defined in the Turkish Food Codex with code E 155 and Color Index (CI) 20285.
Where is Brown HT Lake Used?
It is used for coloring in food categories permitted by regulations. For permitted categories and maximum amounts, see the table below.
Pharmaceutical / Food Industry Applications
- Lake (aluminum lake) form is water-insoluble and is used as a coating color in pharmaceuticals and dietary supplements (for tablet, dragee, capsule, and supplement product coatings).
- Synthetic food colors can also be used in pharmaceuticals depending on their specification. If the product specification includes USP, NF, or Ph.Eur, compliance with pharmaceutical (pharmacopoeial) standards is verified according to these standards.
- There is no ban on use in dietary supplements; they may be used within the limits established for foods.
How Much Brown HT Lake is Used in Which Foods? — Legal Limits (Turkish Food Codex)
E 155 is a Group III colorant; a combined maximum (mostly 150 mg/kg) applies in many food categories. The lake form is water-insoluble.
| Food category | Maximum amount | Footnote |
|---|---|---|
| Foods within Group III (e.g., flavored creams) | 150 mg/kg | — |
| Pre-cooked crustaceans | quantum satis | — |
| For health labeling purposes | quantum satis | — |
Note: "quantum satis" means use as required by good manufacturing practice without a specific numerical upper limit. In Group III colorants, the total amount must not exceed the combined maximum established for the group.
E-Number, Color, and Technical Properties
- E code: E 155 · Color Index: CI 20285 · Color: brown
- CAS No: 4553-89-3 · Chemical Formula: C20H10Na2O5S
- Forms: aluminum lake (water-insoluble)
Storage, Shelf Life, and Re-test Period
For our products, the recommended re-test period is 3 years; it may extend up to 5 years with some manufacturers and varies by producer. The CoA / specification document of the relevant batch shall be used for the exact re-test date.
Technical Documents and Supply — Asuka Kimya
You can contact Asuka Kimya for SDS, TDS, CoA, and pharmacopoeia (USP/NF/Ph.Eur) compliance information, as well as supply conditions, for Brown HT Lake (E 155).