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CAS 51-17-2

CAS 51-17-2 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 51-17-2
CAS 51-17-2PubChem CID 5798

Benzimidazole

Benzimidazole appears as white tabular crystals. (NTP, 1992) — CAMEO Chemicals

IUPAC name
1H-benzimidazole
Molecular formula
C7H6N2
Molecular weight
118.14 g/mol
Exact mass
118.053098200 Da
XLogP3
1.3
Topological polar surface area
28.7 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

Benzoimidazole1,3-BenzodiazoleBenziminazole3-Azaindoleo-BenzimidazoleBenzoglyoxalineAzindole1,3-Diazaindene
16 more reported names
N,N'-Methenyl-o-phenylenediamineNSC 759NSC-759E24GX49LD8CHEBI:41275RefChem:5589CHEBI:36622200-081-41H-Benzo[d]imidazole1H-Benzoimidazole1H-1,3-benzodiazoleBenzimidazolBZI1H-1,3-BENZIMIDAZOLEbenzimidazole phase betaethabenzimidazole phase alphalpha
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 51-17-2

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How CAS 51-17-2 is used on this site

CAS 51-17-2 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 51-17-2 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.