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CAS 1 record

CAS 966-62-1

CAS 966-62-1 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 966-62-1
CAS 966-62-1PubChem CID 101929

Basic Blue 6

IUPAC name
benzo[a]phenoxazin-9-ylidene(dimethyl)azanium chloride
Molecular formula
C18H15ClN2O
Molecular weight
310.8 g/mol
Exact mass
310.0872908 Da
Topological polar surface area
24.6 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
3
Covalent units
2
Defined stereocentres
0

Also known as

MeldolaNaphthol blueC.I. Basic Blue 6Naphthol blue (VAN)C.I. Basic Blue 6 (VAN)UNII-CP2ST8ED1OCP2ST8ED1OC.I. 51175
16 more reported names
NSC 9291NSC-9291EINECS 213-524-1CI 51175Benzo(a)phenazoxonium, 9-(dimethylamino)-, chlorideBenzo(a)phenoxazinium, 9-(dimethylamino)-, chlorideBenzo[a]phenoxazin-7-ium, 9-(dimethylamino)-, chlorideBenzo(a)phenoxazin-7-ium, 9-(dimethylamino)-, chloride (1:1)9-DIMETHYLAMINOBENZO(A)PHENAZOXONIUM CHLORIDE9-(DIMETHYLAMINO)BENZO(A)PHENOXAZINIUM CHLORIDE9-(Dimethylamino)benzo(alpha)phenoxazin-7-ium chlorideBenzo(a)phenoxazin-7-ium, 9-(dimethylamino)-, chlorideBenzo(alpha)phenoxazin-7-ium,9-(dimethylamino)-, chlorideBenzo[a]phenoxazin-7-ium, 9-(dimethylamino)-, chloride (1:1)RefChem:116614BASIC BLUE 6 [INCI]
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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 966-62-1

1 total
No records found for this CAS number.

How CAS 966-62-1 is used on this site

CAS 966-62-1 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 966-62-1 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.