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CAS 1 record

CAS 27311-52-0

CAS 27311-52-0 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 27311-52-0
CAS 27311-52-0PubChem CID 21889084

2,2'-Methylenebis(4-aminophenol) dihydrochloride

IUPAC name
4-amino-2-[(5-amino-2-hydroxyphenyl)methyl]phenol;dihydrochloride
Molecular formula
C13H16Cl2N2O2
Molecular weight
303.18 g/mol
Exact mass
302.0588831 Da
Topological polar surface area
92.5 Ų
Hydrogen-bond donors
6
Hydrogen-bond acceptors
4
Covalent units
3
Defined stereocentres
0

Also known as

UNII-NOJ4K5V5UH2,2'-Methylenebis-4-aminophenol HClNOJ4K5V5UH2,2'-Methylenebis-4-aminophenol HCl [INCI]Phenol, 2,2'-methylenebis(4-amino, dihydrochloride2,2'-Methylenebis[4-aminophenol] dihydrochlorideRefChem:80748Bis-(5-Amino-2-Hydroxyphenyl)Methane Dihydrochloride
16 more reported names
bis(5-amino-2-hydroxyphenyl)methan dihydrochlorideBis-(5-amino-2-hydroxyphenyl)methane 2HClC13H16Cl2N2O2Bis(5-amino-2-hydroxyphenyl)methan diHClBis-(5-Amino-2-Hydroxyphenyl)methane hydrochloride2,2'-Methylenebis(4-aminophenol)dihydrochloridebis(5-amino-2-hydroxyphenyl)methane dihydrochlorideWKERZZAEPVPFPO-UHFFFAOYSA-NAS-13569DB-022672CS-01990702,2'-METHYLENEBIS(4-AMINOPHENOL) 2HCL4-amino-2-[(5-amino-2-hydroxyphenyl)methyl]ph2,2'-Methylenebis(4-aminophenol)--hydrogen chloride (1/2)4-amino-2-[(5-amino-2-hydroxy-phenyl)methyl]phenol;dihydrochloride4-amino-2-[(5-amino-2-hydroxyphenyl)methyl]phenol,dihydrochloride
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External database identifiers

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

Records for CAS 27311-52-0

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No records found for this CAS number.

How CAS 27311-52-0 is used on this site

CAS 27311-52-0 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.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 27311-52-0 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.