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InventoryRef 3162713/08/2020

ACID RED 33

Disodium 5-amino-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulphonate (CI 17200)

ACID RED 33 is linked to 2 EU annex records on this page. Inventory note: III/254 (Acid Red 33) IV/37 (CI 17200).

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Inventory details for ACID RED 33

INCI name

ACID RED 33

Description

Disodium 5-amino-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulphonate (CI 17200)

Annex III Restriction reference
Entry 254

ACID RED 33

CAS: 3567-66-6
EC: 222-656-9
Annex IV Restriction reference
Entry 37

CI 17200

CAS: 3567-66-6
EC: 222-656-9

Key data

CAS
3567-66-6
EC
222-656-9
Restriction
III/254 (Acid Red 33) IV/37 (CI 17200)
Function
HAIR DYEING

How ACID RED 33 appears in the CosIng inventory

The CosIng inventory lists ACID RED 33 as a cosmetic ingredient and this page links it to 2 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

ACID RED 33 is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

ACID RED 33 appears in the EU CosIng inventory and has linked annex records. Check the annex records above for applicable restrictions, concentration limits and conditions of use. Annex II listing means prohibited; Annex III means restricted; Annexes IV, V and VI mean permitted under specified conditions.

The restriction field for ACID RED 33 reads: "III/254 (Acid Red 33) IV/37 (CI 17200)". This is the restriction note recorded in the CosIng inventory for this ingredient. For authoritative conditions and limits, always refer to the linked annex entries above.

According to the EU CosIng inventory, ACID RED 33 carries the following function designation(s):

CAS 3567-66-6 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.
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Source note for ACID RED 33

This page combines the CosIng inventory entry for ACID RED 33 with 2 linked Annex II–VI records from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research ACID RED 33 and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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Tools & next steps

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