InventoryRef 3276814/08/2020

CI 45370

4',5'-Dibromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one

CI 45370 is linked to 2 EU annex records on this page. Inventory note: IV/75 (CI 45370) II/1333 (Solvent Red 72) and its disodium salt (CI 45370) when used as a substance in hair dye products.

Inventory details for CI 45370

INCI name

CI 45370

Description

4',5'-Dibromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one

Annex IV Restriction reference
Entry 75

CI 45370

CAS: 596-03-2; 4372-02-5
EC: 209-876-0; 224-468-2

Key data

Restriction
IV/75 (CI 45370) II/1333 (Solvent Red 72) and its disodium salt (CI 45370) when used as a substance in hair dye products
Function

How CI 45370 appears in the CosIng inventory

The CosIng inventory lists CI 45370 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.

CI 45370 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

CI 45370 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 CI 45370 reads: "IV/75 (CI 45370) II/1333 (Solvent Red 72) and its disodium salt (CI 45370) 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, CI 45370 carries the following function designation(s):

CAS 4372-02-5 / 596-03-2 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.

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.

Source note for CI 45370

This page combines the CosIng inventory entry for CI 45370 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 CI 45370 and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

Tools & next steps

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