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Key Documents

D3630

Sigma-Aldrich

Diphenhydramine hydrochloride

≥98% (HPLC)

Synonym(s):

2-Diphenylmethoxy-N,N-dimethylethylamine hydrochloride, N-(2-Diphenylmethoxyethyl)-N,N-dimethylamine hydrochloride

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About This Item

Empirical Formula (Hill Notation):
C17H21NO · HCl
CAS Number:
Molecular Weight:
291.82
EC Number:
MDL number:
UNSPSC Code:
12352116
PubChem Substance ID:
NACRES:
NA.77

Quality Level

Assay

≥98% (HPLC)

form

powder

originator

Johnson & Johnson

SMILES string

Cl[H].CN(C)CCOC(c1ccccc1)c2ccccc2

InChI

1S/C17H21NO.ClH/c1-18(2)13-14-19-17(15-9-5-3-6-10-15)16-11-7-4-8-12-16;/h3-12,17H,13-14H2,1-2H3;1H

InChI key

PCHPORCSPXIHLZ-UHFFFAOYSA-N

Gene Information

human ... HRH1(3269)

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Application

Diphenhydramine hydrochloride has been used:
as a reference compound to study the long duration of action of antihistamine bilastine in vivo
to detect its embryotoxicity by embryonic stem cell test (EST) using cardiomyocyte differentiation and osteoblasts differentiation
as an antihistamine in experimental studies

Biochem/physiol Actions

H1 histamine receptor antagonist
Diphenhydramine hydrochloride (DPH) is an antihistaminic agent that relieves symptoms of hypersensitive reactions. It exhibits antimuscarinic and marked sedative effects. DPH is also used to prevent nausea, vomiting and vertigo of various causes. In addition, it acts as a potential therapeutic for insomnia.

Features and Benefits

This compound was developed by Johnson & Johnson. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Clinical evaluation of diphenhydramine hydrochloride for the treatment of insomnia in psychiatric patients: a double-blind study
Kudo Y and Kurihara M
Journal of Clinical Pharmacology, 30(11), 1041-1048 (1990)
Simultaneous determination of pseudoephedrine hydrochloride and diphenhydramine hydrochloride in cough syrup by gas chromatography (GC)
Raj SV, et al.
Talanta, 46(1), 221-225 (1998)
The long duration of action of the second generation antihistamine bilastine coincides with its long residence time at the histamine H1 receptor
Bosma R, et al.
European Journal of Pharmacology, 838, 107-111 (2018)
Jiayi Chen et al.
Cell stem cell, 29(11), 1531-1546 (2022-10-21)
The communication between glioblastoma stem cells (GSCs) and the surrounding microenvironment is a prominent feature accounting for the aggressive biology of glioblastoma multiforme (GBM). However, the mechanisms by which GSCs proactively drive interactions with microenvironment is not well understood. In
Morgan Panitchpakdi et al.
PloS one, 17(7), e0271794-e0271794 (2022-07-27)
Clinical testing typically relies on invasive blood draws and biopsies. Alternative methods of sample collection are continually being developed to improve patient experience; swabbing the skin is one of the least invasive sampling methods possible. To show that skin swabs

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