What does the restriction note for M-AMINOPHENOL HCL mean?

The restriction field for M-AMINOPHENOL HCL reads: III/217. 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 51-81-0?

CAS 51-81-0 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.

How do I check if my formula contains M-AMINOPHENOL HCL?

Use the INCI Checker to screen a full ingredient list across selected markets, or use the substance market comparison to review this identity across all supported market datasets.

InventoryRef 3514817/10/2010

M-AMINOPHENOL HCL

3-Hydroxyanilinium chloride (CI 76545)

M-AMINOPHENOL HCL is linked to 1 EU annex record on this page. Inventory note: III/217.

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Regulatory evidence by market

This matrix separates verified ingredient rules from sources that are mapped but not yet imported. No imported rule does not mean the ingredient is permitted.

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Market	Evidence status	Records	Source language
European Union	Evidence linked Restricted entry found Open this evidence	1	English and EU languages
Great Britain	Source mapped Official source mapped; ingredient rule not imported	0	English
Canada	Source mapped Official source mapped; ingredient rule not imported	0	English and French
New Zealand	Evidence linked Restricted Open this evidence	1	English
ASEAN	Source mapped Official source mapped; ingredient rule not imported	0	English and national languages
China	Source mapped Official source mapped; ingredient rule not imported	0	Chinese with selected English material
Japan	Source mapped Official source mapped; ingredient rule not imported	0	Japanese; official English translation available
South Korea	Source mapped Official source mapped; ingredient rule not imported	0	Korean with some English names
United States	Source mapped Official source mapped; ingredient rule not imported	0	English
Australia	Source mapped Official source mapped; ingredient rule not imported	0	English
Brazil	Source mapped Official source mapped; ingredient rule not imported	0	Portuguese with INCI crosswalks
India	Source mapped Official source mapped; ingredient rule not imported	0	English and Hindi
Saudi Arabia	Source mapped Official source mapped; ingredient rule not imported	0	Arabic and English

Chemical identity and properties

PubChem 2D chemical structure for CAS 51-81-0

CAS 51-81-0PubChem CID 12231984

3-Aminophenol hydrochloride

IUPAC name: 3-aminophenol;hydrochloride

Molecular formula: C6H8ClNO
Molecular weight: 145.59 g/mol
Exact mass: 145.0294416 Da
Topological polar surface area: 46.3 Å²
Hydrogen-bond donors: 3
Hydrogen-bond acceptors: 2
Covalent units: 2
Defined stereocentres: 0

Also known as

m-Aminophenol HClRefChem:92987200-125-2NQM2XX7XPOPhenol, 3-amino-, hydrochloridem-aminophenol hydrochloride3-aminophenol,hydrochlorideBS-52111

8 more reported names

(3-hydroxyphenyl)azanium;chloridePhenol, 3-amino-, hydrochloride (1:1)3-AMINOPHENOLHYDROCHLORIDEFT-06920723-AMINOPHENOLHYDROCHLORIDDCBCSMXGLXAXDM-UHFFFAOYSA-N3-Aminophenol--hydrogen chloride (1/1)Phenol, 3-aamino-a, hydrochloride (1:1)

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEMBL:CHEMBL376136
EPA DTXSID:DTXSID10892453

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for M-AMINOPHENOL HCL

INCI name

M-AMINOPHENOL HCL

Description

3-Hydroxyanilinium chloride (CI 76545)

Record provenance

Inventory reference: 35148
Imported identity: M-AMINOPHENOL HCL
Source update: 17/10/2010

European Commission CosIng source notes

Annex records for M-AMINOPHENOL HCL

Annex III Restriction reference

Entry 217

M-AMINOPHENOL; M-AMINOPHENOL HCL; M-AMINOPHENOL SULFATE

CAS: 591-27-5/ 51-81-0 / 68239-81-6 /38171-54-9

EC: 209-711-2 / 200-125-2 / 269-475-1

Key data

CAS

51-81-0

200-125-2

Restriction

III/217

Function

HAIR DYEING: Imparting color to hair. Hair dyeing preparations may be temporary, semi-permanent, or permanent, depending on the length of time the colorant remains on the hair.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#15957 · M-AMINOPHENOL HCl

Ingredients with overlapping formulation functions

LAWSONIA INERMIS FLOWER EXTRACTHAIR CONDITIONING, HAIR DYEING

LAWSONIA INERMIS FLOWER/FRUIT/LEAF EXTRACTFRAGRANCE, HAIR DYEING

LEAD ACETATEHAIR DYEING

M-AMINOPHENOLHAIR DYEING

M-AMINOPHENOL SULFATEHAIR DYEING

M-DIMETHYLAMINOPHENYL UREAHAIR DYEING

M-PHENYLENEDIAMINEHAIR DYEING

M-PHENYLENEDIAMINE SULFATEHAIR DYEING

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How M-AMINOPHENOL HCL appears in the CosIng inventory

The CosIng inventory lists M-AMINOPHENOL HCL as a cosmetic ingredient and this page links it to 1 annex record. The inventory entry captures names and identifiers, while the annex record shows where the substance is prohibited, restricted or positively listed in EU cosmetics law.

M-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

M-AMINOPHENOL HCL 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 M-AMINOPHENOL HCL reads: "III/217". 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, M-AMINOPHENOL HCL carries the following function designation(s):

HAIR DYEING

CAS 51-81-0 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.

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Source note for M-AMINOPHENOL HCL

This page combines the CosIng inventory entry for M-AMINOPHENOL HCL with 1 linked Annex II–VI record from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research M-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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