What other records share CAS 51-78-5?

CAS 51-78-5 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 3583215/10/2010

P-AMINOPHENOL HCL

Q: How do I check if my formula contains P-AMINOPHENOL HCL?

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.

4-Hydroxyanilinium chloride (CI 76550)

P-AMINOPHENOL HCL is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Inventory details for P-AMINOPHENOL HCL

INCI name

P-AMINOPHENOL HCL

Description

4-Hydroxyanilinium chloride (CI 76550)

Annex records for P-AMINOPHENOL HCL

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Key data

CAS

51-78-5

200-122-6

Restriction

—

Function

HAIR DYEING

How P-AMINOPHENOL HCL appears in the CosIng inventory

The CosIng inventory lists P-AMINOPHENOL HCL as a cosmetic ingredient and this page links it to 0 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.

P-AMINOPHENOL HCL 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

P-AMINOPHENOL HCL is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, P-AMINOPHENOL HCL carries the following function designation(s):

HAIR DYEING

CAS 51-78-5 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 P-AMINOPHENOL HCL

This page reproduces the CosIng inventory entry for P-AMINOPHENOL HCL from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research P-AMINOPHENOL HCL 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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