CosIng Checker
CosIng Checker
EU cosmetic ingredients, restrictions and safety
Login
InventoryRef 3274513/08/2020

CI 27755

Tetrasodium 6-amino-4-hydroxy-3-[[7-sulphonato-4-[(4-sulphonatophenyl)azo]-1-naphthyl]azo]naphthalene-2,7-disulphonate

CI 27755 is linked to 2 EU annex records on this page. Inventory note: IV/52 II/1354 (Food Black 2; CI 27755: when used as a substance in hair dye products).

INCI Checker Search similar

Inventory details for CI 27755

INCI name

CI 27755

Description

Tetrasodium 6-amino-4-hydroxy-3-[[7-sulphonato-4-[(4-sulphonatophenyl)azo]-1-naphthyl]azo]naphthalene-2,7-disulphonate

Annex IV Restriction reference
Entry 52

CI 27755

CAS: 2118-39-0
EC: 218-326-9

Key data

CAS
2118-39-0
EC
218-326-9
Restriction
IV/52 II/1354 (Food Black 2; CI 27755: when used as a substance in hair dye products)
Function
COLORANT

How CI 27755 appears in the CosIng inventory

The CosIng inventory lists CI 27755 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 27755 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 27755 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 27755 reads: "IV/52 II/1354 (Food Black 2; CI 27755: 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 27755 carries the following function designation(s):

CAS 2118-39-0 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.
View CAS records

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.
Open INCI Checker

Source note for CI 27755

This page combines the CosIng inventory entry for CI 27755 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 27755 and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

View sourcesView updates

Tools & next steps

Check your formula

Scan a full INCI list to detect CI 27755 and any linked EU annex restrictions or allergen flags.

INCI Checker

Search similar ingredients

Find other inventory ingredients and annex entries related to CI 27755, its identifiers or nearby name variants.

Search