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CAS 550-99-2

CAS 550-99-2 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 550-99-2
CAS 550-99-2PubChem CID 11079

Naphazoline Hydrochloride

IUPAC name
2-(naphthalen-1-ylmethyl)-4,5-dihydro-1H-imidazole;hydrochloride
Molecular formula
C14H15ClN2
Molecular weight
246.73 g/mol
Exact mass
246.0923762 Da
Topological polar surface area
24.4 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
1
Covalent units
2
Defined stereocentres
0

Also known as

NAPHAZOLINE HCLAlbalonVasoconOpconRhinantinRhinoperdStricylonNiazol
16 more reported names
Naphcon fortePrivine hydrochlorideNaphazoline chlorideColdanSanorinPrizole hydrochlorideNAFAZAIR2-(1-Naphthylmethyl)-2-imidazoline hydrochlorideNSC-357111H-Imidazole, 4,5-dihydro-2-(1-naphthalenylmethyl)-, monohydrochloride2-Imidazoline, 2-(1-naphthylmethyl)-, monohydrochlorideNazalAntistin-privineNaphaz hclSato ClearGppe nsl soln
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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 550-99-2

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How CAS 550-99-2 is used on this site

CAS 550-99-2 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 550-99-2 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.