1-(3-Chlorophenyl)piperazine hydrochloride


Empirical Formula (Hill Notation):
C10H13ClN2 · xHCl
CAS Number:
Molecular Weight:
196.68 (free base basis)
EC Number:
MDL number:
PubChem Substance ID:
Pricing and availability is not currently available.

Quality Level




210-214 °C (dec.) (lit.)


methanol: soluble

SMILES string




InChI key


Gene Information

rat ... Htr1a(24473)

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General description

1-(3-Chlorophenyl)piperazine hydrochloride is sold as Ecstasy mimic tablets and is the major metabolite of the antidepressant medications trazodone and nefazodone.


1-(3-Chlorophenyl)piperazine hydrochloride (CPP) has been used in determination of designer piperazines in urine specimens using GC-MS and LC-ESI-MS. CPP has been used to investigate the in vitro efficacy of newly synthesized compounds such as fluoroquinolones (norfloxacine and lomefloxacine) against Philasterides dicentrarchi .


5, 25 g in glass bottle

Biochem/physiol Actions

1-(3-Chlorophenyl)piperazine induces hypophagia in food-deprived and freely feeding rats. CPP has affinity for 11 neurotransmitter receptor binding sites in human brain membranes.
5-HT2c serotonin receptor agonist; metabolite of trazodone.


Exclamation mark

Signal Word


Hazard Statements

Precautionary Statements

Target Organs

Respiratory system

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Hazard Codes


Risk Statement


Safety Statement



NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

G A Kennett et al.
British journal of pharmacology, 103(4), 2016-2020 (1991-08-01)
1. 1-3(Chlorophenyl)piperazine (mCPP) (5 mg kg-1, i.p.) inhibited 2 h food intake in rats previously deprived of food for one day. Ten 5-hydroxytryptamine (5-HT) antagonists given s.c. opposed this hypophagic response. Calculated ID50 values correlated significantly with reported affinities (r...
Horst Schicknick et al.
Cerebral cortex (New York, N.Y. : 1991), 18(11), 2646-2658 (2008-03-07)
Previous studies in the auditory cortex of Mongolian gerbils on discrimination learning of the direction of frequency-modulated tones (FMs) revealed that long-term memory formation involves activation of the dopaminergic system, activity of the protein kinase mammalian target of rapamycin (mTOR)...
Nan Zhang et al.
Journal of ethnopharmacology, 219, 23-30 (2018-03-17)
Cananga odorata essential oil, known as ylang-ylang essential oil (YYO), was commonly used in the aromatherapy for relaxation and mood adjusting use. In our previous study, YYO played anxiolytic effects on the mice in several behavioral tests that based on...
A Hamik et al.
Biological psychiatry, 25(5), 569-575 (1989-03-01)
The affinity of 1-(m-chlorophenyl)piperazine (mCPP) for 11 neurotransmitter receptor binding sites was determined in human brain membranes. mCPP is essentially equipotent at all 5-hydroxytryptamine (5-HT) receptor subtypes (IC50 values ranging from 360 to 1300 nM). The drug displays similar affinity...
A Paramá et al.
Diseases of aquatic organisms, 62(1-2), 97-102 (2005-01-15)
Philasterides dicentrarchi is a histiophagous ciliate that causes severe losses in turbot and sea bass farming. This study investigated the in vitro efficacy against P. dicentrarchi of 85 newly synthesized compounds and 12 commercial compounds, of which 2 are fluoroquinolones...

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