What does the restriction note for ACID GREEN 1 mean?

The restriction field for ACID GREEN 1 reads: II/1342 (Acid Green 1; CI 10020: when used as a substance in hair dye products). This is the restriction note from the CosIng inventory. For authoritative conditions and limits, always refer to the linked annex entries.

What other records share CAS 19381-50-1?

CAS 19381-50-1 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

InventoryRef 3161514/08/2020

ACID GREEN 1

Q: How do I check if my formula contains ACID GREEN 1?

Use the INCI Checker tool on CosIng Checker to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

Trisodium tris[5,6-dihydro-5-(hydroxyimino)-6-oxonaphthalene-2-sulphonato(2-)-N5,O6]ferrate(3-) (CI 10020)

ACID GREEN 1 is linked to 2 EU annex records on this page. Inventory note: II/1342 (Acid Green 1; CI 10020: when used as a substance in hair dye products).

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Inventory details for ACID GREEN 1

INCI name

ACID GREEN 1

Description

Trisodium tris[5,6-dihydro-5-(hydroxyimino)-6-oxonaphthalene-2-sulphonato(2-)-N5,O6]ferrate(3-) (CI 10020)

Annex records for ACID GREEN 1

Annex II Restriction reference

Entry 1342

Trisodium tris[5,6-dihydro-5-(hydroxyimino)-6-oxonaphthalene-2-sulphonate(2-)-N5,O6]ferrate(3-); (A…

CAS: 19381-50-1

EC: 243-010-2

Annex IV Identified ingredient

Entry 2

CI 10020

CAS: 19381-50-1

EC: 243-010-2

Key data

CAS

19381-50-1

243-010-2

Restriction

II/1342 (Acid Green 1; CI 10020: when used as a substance in hair dye products)

Function

HAIR DYEING

How ACID GREEN 1 appears in the CosIng inventory

The CosIng inventory lists ACID GREEN 1 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 GREEN 1 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 GREEN 1 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 GREEN 1 reads: "II/1342 (Acid Green 1; CI 10020: when used as a substance in hair dye products)". 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 GREEN 1 carries the following function designation(s):

HAIR DYEING

CAS 19381-50-1 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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Use the INCI Checker tool to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

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Source note for ACID GREEN 1

This page combines the CosIng inventory entry for ACID GREEN 1 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 GREEN 1 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

Check your formula

Scan a full INCI list to detect ACID GREEN 1 and any linked EU annex restrictions or allergen flags.

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Search similar ingredients

Find other inventory ingredients and annex entries related to ACID GREEN 1, its identifiers or nearby name variants.