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CAS 479-73-2

CAS 479-73-2 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 479-73-2
CAS 479-73-2PubChem CID 11293

Pararosaniline

IUPAC name
4-[(4-aminophenyl)-(4-iminocyclohexa-2,5-dien-1-ylidene)methyl]aniline
Molecular formula
C19H17N3
Molecular weight
287.4 g/mol
Exact mass
287.142247555 Da
XLogP3
3.3
Topological polar surface area
75.9 Ų
Hydrogen-bond donors
3
Hydrogen-bond acceptors
3
Covalent units
1
Defined stereocentres
0

Also known as

Homolka's Base20N4C0M8NM4-((4-AMINOPHENYL)(4-IMINO-2,5-CYCLOHEXADIEN-1-YLIDENE)METHYL)BENZENAMINE4-((4-aminophenyl)(4-imino-2,5-cyclohexadien-1-ylidene)methyl)benzeneamine monohydrochlorideCHEBI:87663RefChem:928586ALPHA-(P-AMINOPHENYL)-ALPHA-(4-IMINO-2,5-CYCLOHEXADIEN-1-YLIDENE)-P-TOLUIDINEalpha-(4-aminophenyl)-alpha-(4-imino-2,5-cyclohexadien-1-ylidene)-4-toluidine monohydrochloride
16 more reported names
Basic Red 9ParasanilineParaMagentap-Rosaniline HClBenzenamine, 4-((4-aminophenyl)(4-imino-2,5-cyclohexadien-1-ylidene)methyl)-UNII-20N4C0M8NMBenzenamine, 4-[(4-aminophenyl)(4-imino-2,5-cyclohexadien-1-ylidene)methyl]-pararosaniline free baseNeuro_000010NCIStruc1_001010NCIStruc2_000958cid_11293CHEBI:75372CCG-36728NCI60_0001124-(4,4'-diamino-benzhydrylidene)-cyclohexa-2,5-dienone-imine
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External database identifiers

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 479-73-2

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How CAS 479-73-2 is used on this site

CAS 479-73-2 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share 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 479-73-2 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.