CAS 51-19-4 — 1 EU Cosmetic Records

Chemical identity and properties

PubChem 2D chemical structure for CAS 51-19-4

CAS 51-19-4PubChem CID 5800

2-Aminophenol hydrochloride

IUPAC name: 2-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

Phenol, 2-amino-, hydrochlorideo-Hydroxyaniline hydrochloridePhenol, o-amino-, hydrochlorideNSC 165648RefChem:465183Phenol, 2-amino-, hydrochloride (9CI)621-209-9o-Aminophenol hydrochloride

9 more reported names

Phenol, 2-amino-, hydrochloride (1:1)2-aminophenol HCl2-aminophenol HCl saltO-AMINOPHENYL HYDROCHLORIDENSC-1656482-Aminophenol--hydrogen chloride (1/1)AS-87300DB-051919A0391

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External database identifiers

EPA DTXSID:DTXSID4073122

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 51-19-4

1 total

No records found for this CAS number.

How CAS 51-19-4 is used on this site

CAS 51-19-4 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

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