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CAS 53918-03-9

CAS 53918-03-9 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 53918-03-9
CAS 53918-03-9PubChem CID 3745949

1H-Benzimidazole-5-sulfonic acid, 2,3-dihydro-2-thioxo-, sodium salt (1:1)

IUPAC name
sodium 2-sulfanylidene-1,3-dihydrobenzimidazole-5-sulfonate
Molecular formula
C7H5N2NaO3S2
Molecular weight
252.3 g/mol
Exact mass
251.96392865 Da
Topological polar surface area
122.0 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
4
Covalent units
2
Defined stereocentres
0

Also known as

1H-Benzimidazole-5-sulfonic acid, 2,3-dihydro-2-thioxo-, monosodium saltEINECS 258-862-0Sodium 2,3-dihydro-2-thioxo-1H-benzimidazole-5-sulphonate2,3-Dihydro-2-thioxo-1H-benzimidazole-5-sulfonic acid, monosodium saltRefChem:79693258-862-0Sodium 2-Mercapto-1H-benzimidazole-5-sulfonateSODIUM 2-MERCAPTO-1H-BENZO[D]IMIDAZOLE-5-SULFONATE
12 more reported names
sodium;2-sulfanylidene-1,3-dihydrobenzimidazole-5-sulfonatesodium 2-sulfanyl-1H-1,3-benzodiazole-5-sulfonateSodium 2-Mercapto-5-benzimidazolesulfonateC7H5N2NaO3S2QQ848SE7FSAMZPPWFHMNMIEI-UHFFFAOYSA-Msodium;2-sulfanyl-3H-benzimidazole-5-sulfonate2-sulfanylbenzimidazole-5-sulfonic acid, sodium saltsodium 2-mercapto-1H-benzo[d]imidazole-5-sulphonateSodium 2-thioxo-2,3-dihydro-1H-benzimidazole-5-sulfonate1H-Benzimidazole-5-sulfonic acid, 2,3-dihydro-2-thioxo-, sodium saltSodium 2-sulfanylidene-2,3-dihydro-1H-1,3-benzimidazole-5-sulfonate
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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 53918-03-9

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How CAS 53918-03-9 is used on this site

CAS 53918-03-9 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 53918-03-9 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.