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CAS 27757-79-5

CAS 27757-79-5 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 27757-79-5
CAS 27757-79-5PubChem CID 80753

3-Hydroxy-4-(phenylazo)-2-naphthoic acid

IUPAC name
3-hydroxy-4-phenyldiazenylnaphthalene-2-carboxylic acid
Molecular formula
C17H12N2O3
Molecular weight
292.29 g/mol
Exact mass
292.08479225 Da
XLogP3
4.7
Topological polar surface area
82.3 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
5
Covalent units
1
Defined stereocentres
0

Also known as

2-Naphthalenecarboxylic acid, 3-hydroxy-4-(phenylazo)-EINECS 248-638-0NSC 11713DYMRMULFWJUGDJ-UHFFFAOYSA-N2-Naphthalenecarboxylicacid, 3-hydroxy-4-(2-phenyldiazenyl)-NSC-117133-Hydroxy-4-phenylazo-2-naphthoic acid4-phenylazo-3-hydroxy-2-naphthoic acid
3 more reported names
NCI60_000394DS-0011603-Hydroxy-4-(phenyldiazenyl)naphthalene-2-carboxylic acid
Open full PubChem recordPubChem annotations3D structure image
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 27757-79-5

1 total
No records found for this CAS number.

How CAS 27757-79-5 is used on this site

CAS 27757-79-5 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 27757-79-5 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.