(R)-(+)-8-Hydroxy-DPAT hydrobromide

≥98% (HPLC), solid

(R)-(+)-8-Hydroxy-2-(dipropylamino)tetralin hydrobromide, (R)-(+)-2-Dipropylamino-8-hydroxy-1,2,3,4-tetrahydronaphthalene hydrobromide
Empirical Formula (Hill Notation):
C16H25NO · HBr
CAS Number:
Molecular Weight:
MDL number:
PubChem Substance ID:
Pricing and availability is not currently available.

Quality Level


≥98% (HPLC)



optical activity

[α]25/D +68.2°, c = 1 in methanol(lit.)

storage condition

protect from light


white to off-white


H2O: >10 mg/mL at ±60 °C (with sonication)

SMILES string




InChI key


Gene Information

human ... HTR1A(3350)

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(R)-(+)-8-Hydroxy-DPAT hydrobromide has been used as a 5-HT1A agonist:
  • in mice to test the activity of the serotonin receptor
  • to test its effect on zebrafish melanocyte migration and survival
  • to stimulate hippocampal neurons


5, 25, 100 mg in glass bottle

Biochem/physiol Actions

(R)-(+)-8-Hydroxy-DPAT administration reduces aggressive behavior. It decreases food intake by modifying the sensitivity of 5-HT1A receptor during food deprivation.
(R)-(+)-8-Hydroxy-DPAT is a full 5-HT1A serotonin receptor agonist; active enantiomer of (±)-8-hydroxy-DPAT.

Features and Benefits

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.

Legal Information

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

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Masatoshi Nagano et al.
Scientific reports, 8(1), 13675-13675 (2018-09-14)
Disturbance of neurotransmitters and neuromodulators is thought to underlie the pathophysiology of autism spectrum disorder (ASD). Studies of 15q dup mouse models of ASD with human 15q11-13 duplication have revealed that restoring serotonin (5-HT) levels can partially reverse ASD-related symptoms...
Keith A Hultman et al.
Zebrafish, 5(4), 279-287 (2009-01-13)
Zebrafish is gaining popularity as a vertebrate model for screening small molecules that affect specific phenotypes or genetic pathways. In this study, we present a targeted drug screen to identify drug modifiers of the melanocyte migration defect of a temperature-sensitive...
Mice do not habituate to metabolism cage housing-a three week study of male BALB/c mice
Kalliokoski O, et al.
PLoS ONE, 8(3), 1176-1185 (2013)
Jan Brosda et al.
ACS chemical neuroscience, 6(7), 1176-1185 (2015-03-18)
Brain serotonin (5-HT) is involved in the control of food intake. The ingestive effects of 5-HT are mediated by various receptor subtypes, among others the 5-HT1A receptor. While the involvement of presynaptic 5-HT1A receptors is regarded as certain, the role...
L Björk et al.
Journal of medicinal chemistry, 32(4), 779-783 (1989-04-01)
The enantiomers of the N,N-dimethylamino (1), N,N-diethylamino (2), and N,N-dibutylamino (4) derivatives of 8-hydroxy-2-(dipropylamino)tetralin (8-OH DPAT; 3) have been synthesized. The compounds have been tested for activity at central 5-hydroxytryptamine and dopamine receptors by use of biochemical and behavioral tests...

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