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CAS 118658-99-4

CAS 118658-99-4 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 118658-99-4
CAS 118658-99-4PubChem CID 165363664

1,3a(2)-Bipyridinium, 5a(2),5a(2)a(2)a(2)-[methylenebis(4,1-phenylene-2,1-diazenediyl)]bis[1a(2)-[3-(dimethylamino)propyl]-1a(2),2a(2)-dihydro-6a(2)-hydroxy-4a(2)-methyl-2a(2)-oxo-, chloride, hydrochloride (1:2:2)

IUPAC name
1-[3-(dimethylamino)propyl]-5-[[4-[[4-[[1-[3-(dimethylamino)propyl]-2-hydroxy-4-methyl-6-oxo-5-pyridin-1-ium-1-yl-3-pyridinyl]diazenyl]phenyl]methyl]phenyl]diazenyl]-6-hydroxy-4-methyl-3-pyridin-1-ium-1-ylpyridin-2-one;dichloride;dihydrochloride
Molecular formula
C45H54Cl4N10O4
Molecular weight
940.8 g/mol
Exact mass
940.305411 Da
Topological polar surface area
145.0 Ų
Hydrogen-bond donors
4
Hydrogen-bond acceptors
12
Covalent units
5
Defined stereocentres
0
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External database identifiers

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match165363664

Attributed physical-property, hazard, environmental and use annotations.

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status
SourceResultChecked
NIH PubChem PUG-ViewExact match2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

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 118658-99-4

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No records found for this CAS number.

How CAS 118658-99-4 is used on this site

CAS 118658-99-4 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 118658-99-4 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.