Promethazine hydrochloride

10-[2-(Dimethylamino)propyl]phenothiazine hydrochloride
Empirical Formula (Hill Notation):
C17H20N2S · HCl
Número de CAS:
Peso molecular:
Beilstein/REAXYS Number:
Número de EC:
Número MDL:
ID de la sustancia en PubChem:

Nivel de calidad




SMILES string




InChI key


Gene Information

human ... HRH1(3269)

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Acciones bioquímicas o fisiológicas

H1 histamine receptor antagonist; CNS depressant; anticholinergic.

Características y beneficios

This compound is also offered as part of Sigma′s Library of Pharmacologically Active Compounds (LOPAC®1280), a biologically annotated collection of high-quality, ready-to-screen compounds. Click here to learn more.

Otras notas

Solubility: Freely soluble in water, in hot dehydrated alcohol and in Chloroform. Practically insoluble in ether, in acetone and in ethyl acetate.

Forma física

Appearance: White or faint yellow, odorless, Crystalline powder, slowly oxidizes and acquires a blue color, on prolonged exposure to air.

Información legal

LOPAC is a registered trademark of Sigma-Aldrich Co. LLC

Palabra de señalización


Frases de peligro

Equipo de protección personal

dust mask type N95 (US), Eyeshields, Faceshields, Gloves


UN 3077 9 / PGIII

WGK Alemania


Punto de inflamabilidad F

Not applicable

Punto de inflamabilidad C

Not applicable

A B Wright et al.
Ultrasound in medicine & biology, 25(2), 241-247 (1999-05-13)
This sonographic study was aimed at examining the effect of sedation with promethazine (1.5 mg x kg(-1)), on gastroduodenal function in neonatal piglets. On 3 consecutive days, observations of gastroduodenal motility during the first 3 postprandial h were made in...
Z Li et al.
Neuroscience, 70(1), 145-158 (1996-01-01)
Ionic mechanisms responsible for histamine-induced prolonged depolarization in supraoptic nucleus neurons were investigated using whole-cell patch recordings in horizontally prepared brain slices from adult male rats. Bath application of histamine (1-10 microM) in control medium induced membrane depolarization in nine...
Frank Fasbender et al.
Archives of toxicology, 94(2), 439-448 (2020-02-16)
Drug-induced liver injury (DILI) represents one of the major causes why drugs have to be withdrawn from the market. In this study, we describe a new interaction between drug-exposed hepatocytes and natural killer (NK) cells. In a previous genome-wide expression...
Louis C Leung et al.
Nature, 571(7764), 198-204 (2019-07-12)
Slow-wave sleep and rapid eye movement (or paradoxical) sleep have been found in mammals, birds and lizards, but it is unclear whether these neuronal signatures are found in non-amniotic vertebrates. Here we develop non-invasive fluorescence-based polysomnography for zebrafish, and show-using unbiased, brain-wide...
William C Kwan et al.
The Journal of comparative neurology, 527(3), 558-576 (2018-01-03)
The primate visual brain possesses a myriad of pathways, whereby visual information originating at the retina is transmitted to multiple subcortical areas in parallel, before being relayed onto the visual cortex. The dominant retinogeniculostriate pathway has been an area of...

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