Diphenhydramine

C17H21NOCAS 58-73-1255.36 g/mol

NO
EtherTertiary amine

Properties

Molecular formula
C17H21NO
Molar mass
255.36 g/mol
Exact mass
255.1623 Da
Melting point
168 °C
Boiling point
150–165 °C (at 2 Torr)
pKa
8.98
logP
3.35Crippen estimate
Polar surface area
12.5 Ų
H-bond donors / acceptors
0 / 2
Rotatable bonds
6

Hazards

Warning
Irritant (GHS07)

Aggregated from 6 ECHA notifications, via PubChem; a share says how many notifiers assign that statement.

Precautionary statements

P264, P264+P265, P270, P280, P301+P317, P302+P352, P305+P351+P338, P321, P330, P332+P317, P337+P317, P362+P364, P501

Identifiers

CAS number
58-73-1
SMILES
CN(C)CCOC(c1ccccc1)c1ccccc1
InChIKey
ZZVUWRFHKOJYTH-UHFFFAOYSA-N
InChI
InChI=1S/C17H21NO/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

Weigh it out

Type any one amount. The others follow from the molar mass.

Names and synonyms

19 names · show all
  • Ethanamine, 2-(diphenylmethoxy)-N,N-dimethyl-
  • Ethylamine, 2-(diphenylmethoxy)-N,N-dimethyl-
  • 2-(Diphenylmethoxy)-N,N-dimethylethanamine
  • O-Benzhydryldimethylaminoethanol
  • 2-(Benzhydryloxy)-N,N-dimethylethylamine
  • β-Dimethylaminoethanol diphenylmethyl ether
  • α-(2-Dimethylaminoethoxy)diphenylmethane
  • β-Dimethylaminoethylbenzhydrylether
  • 2-(Diphenylmethoxy)-N,N-dimethylethylamine
  • Probedryl
  • N-[2-(Diphenylmethoxy)ethyl]-N,N-dimethylamine
  • Benzhydramine
  • DPH
  • Dimedrol base
  • FAR 90X2
  • NSC 665800
  • N,N-Dimethyl-2-(diphenylmethoxy)ethylamine
  • 2-Benzhydryloxy-N,N-dimethylethanamine
  • 2-(Benzhydryloxy)-N,N-dimethylethanamine

Work with Diphenhydramine

Stereoisomers, salts and isotopologues

The same compound in another form: other stereochemistry, a salt or hydrate, the free acid or base, or an isotope-labelled version.

Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue. All similar compounds

Same formula

Elsewhere