CAS 1 record

CAS 147-24-0

CAS 147-24-0 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

Chemical identity and properties

PubChem 2D chemical structure for CAS 147-24-0

CAS 147-24-0PubChem CID 8980

Diphenhydramine Hydrochloride

Diphenhydramine hydrochloride appears as white or almost-white crystalline powder. Odorless with a bitter numbing taste. pH (5% aqueous solution) 4-6. (NTP, 1992) — CAMEO Chemicals

IUPAC name: 2-benzhydryloxy-N,N-dimethylethanamine;hydrochloride

Molecular formula: C17H22ClNO
Molecular weight: 291.8 g/mol
Exact mass: 291.1389920 Da
Topological polar surface area: 12.5 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 2
Covalent units: 2
Defined stereocentres: 0

Also known as

Diphenhydramine HClAllergivalBendylateAntitussiveDenydrylDibenilEldadrylFenylhist

16 more reported names

HydramineSilphenBeldinBelixDiphenDiphenhydramine.HClFelbenBenaDimedrol hydrochlorideHalbmondVicks Formula 44WehydrylResminBenzhydramine hydrochlorideBanophenDifenhydramine hydrochloride

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEMBL:CHEMBL1620
EPA DTXSID:DTXSID4020537
PubMed:16266919
PubMed:1679

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 147-24-0

1 total

No records found for this CAS number.

How CAS 147-24-0 is used on this site

CAS 147-24-0 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 147-24-0 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.