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CAS 1 record

CAS 3697-42-5

CAS 3697-42-5 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 3697-42-5
CAS 3697-42-5PubChem CID 9571016

Chlorhexidine Hydrochloride

Chlorhexidine hydrochloride is a member of guanidines. — ChEBI

IUPAC name
(1E)-2-[6-[[amino-[(E)-[amino-(4-chloroanilino)methylidene]amino]methylidene]amino]hexyl]-1-[amino-(4-chloroanilino)methylidene]guanidine;dihydrochloride
Molecular formula
C22H32Cl4N10
Molecular weight
578.4 g/mol
Exact mass
578.153602 Da
Topological polar surface area
178.0 Ų
Hydrogen-bond donors
8
Hydrogen-bond acceptors
2
Covalent units
3
Defined stereocentres
0

Also known as

Chlorhexidine dihydrochlorideChlorhexidine HClDantroche hibitaneAY-5312E64XL9U38KNSC-7566792,4,11,13-Tetraazatetradecanediimidamide, N,N''-bis(4-chlorophenyl)-3,12-diimino-, dihydrochlorideChlorhex hcl
16 more reported names
1,1'-Hexamethylenebis(5-(4-chlorophenyl)biguanide) dihydrochloride1,1'-Hexamethylenebis[5-(4-chlorophenyl)biguanide] DihydrochlorideNolvasan Cap-TabsNolvasan SuspensionRefChem:54790Hydrochloride, Chlorhexidine223-026-6Chlorhexidine 2HClArlacide HCaswell No. 481FChlorhexidine (dihydrochloride)Chlorhexidinium dichloride1,1'-Hexamethylenebis(5-(p-chlorophenyl)biguanide) dihydrochlorideEINECS 223-026-6EPA Pesticide Chemical Code 481700UNII-E64XL9U38K
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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 3697-42-5

1 total
No records found for this CAS number.

How CAS 3697-42-5 is used on this site

CAS 3697-42-5 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 3697-42-5 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.