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CAS 26381-41-9

CAS 26381-41-9 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 26381-41-9
CAS 26381-41-9PubChem CID 117785

Basic Brown 16

IUPAC name
[8-[(4-aminophenyl)diazenyl]-7-hydroxynaphthalen-2-yl]-trimethylazanium chloride
Molecular formula
C19H21ClN4O
Molecular weight
356.8 g/mol
Exact mass
356.1403890 Da
Topological polar surface area
71.0 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
5
Covalent units
2
Defined stereocentres
0

Also known as

Arianor MahoganyUNII-QEJ5GK0TG1QEJ5GK0TG1C.I. 12250EINECS 247-640-9C.I. BASIC BROWN 16ARIANOR MAHOGANY 306002ARIANOR MAHOGANY-306002
16 more reported names
CI 122508-(4'-Aminophenylazo)-7-hydroxy-2-naphthyltrimethylammonium chloride2-Naphthalenaminium, 8-(2-(4-aminophenyl)diazenyl)-7-hydroxy-N,N,N-trimethyl-, chloride (1:1)2-Naphthalenaminium, 8-[2-(4-aminophenyl)diazenyl]-7-hydroxy-N,N,N-trimethyl-, chloride (1:1)RefChem:116618BASIC BROWN 16 [INCI]247-640-9[8-[(4-aminophenyl)diazenyl]-7-hydroxynaphthalen-2-yl]-trimethylazanium;chloride2-Naphthalenaminium, 8-[(4-aminophenyl)azo]-7-hydroxy-N,N,N-trimethyl-, chloride8-((4-Aminophenyl)diazenyl)-7-hydroxy-N,N,N-trimethylnaphthalen-2-aminium chlorideArianor Mahogany (Technical Grade)Basic BrownAmmonium, (8-((p-aminophenyl)azo)-7-hydroxy-2-naphthyl)trimethyl-, chloride2-Naphthalenaminium, 8-((4-aminophenyl)azo)-7-hydroxy-N,N,N-trimethyl-, chloride8-[(4-Aminophenyl)diazenyl]-7-hydroxy-N,N,N-trimethylnaphthalen-2-aminium ChlorideBASICBROWN16
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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 26381-41-9

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How CAS 26381-41-9 is used on this site

CAS 26381-41-9 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 26381-41-9 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.