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C6022

Sigma-Aldrich

Cyproheptadine hydrochloride sesquihydrate

≥98% (TLC), solid

Synonym(s):

Piperidine, 4-(5H-dibenzo[a,d]cyclohepten-5-ylidene)-1-methyl-, hydrochloride, hydrate (2:3)

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About This Item

Empirical Formula (Hill Notation):
C21H21N·HCl·1.5H2O
CAS Number:
Molecular Weight:
350.88
EC Number:
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.77

Assay

≥98% (TLC)

form

solid

color

white to slightly yellow

solubility

ethanol: soluble
methanol: soluble

originator

Merck & Co., Inc., Kenilworth, NJ, U.S.

SMILES string

Cl.CN1CCC(\CC1)=C2/c3ccccc3C=Cc4ccccc24

InChI

1S/2C21H21N.2ClH.3H2O/c2*1-22-14-12-18(13-15-22)21-19-8-4-2-6-16(19)10-11-17-7-3-5-9-20(17)21;;;;;/h2*2-11H,12-15H2,1H3;2*1H;3*1H2

InChI key

ZEAUHIZSRUAMQG-UHFFFAOYSA-N

Gene Information

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Application

Cyproheptadine hydrochloride sesquihydrate has been used in:
  • testing anti-inflammatory activity in serotonin receptor (5-HT) induced inflammation
  • the inhibition of 5-HT in in vivo and in vitro bioassays in crabs
  • the inhibition of 5-HT in embryo physiological experiments

inhibition of calcitonin gene related peptide (CGRP)

Biochem/physiol Actions

Cyproheptadine hydrochloride sesquihydrate is a serotonin receptor (5-HT2/5-HT1C) antagonist, H1 histamine receptor antagonist and an antipruritic. The inhibition of 5-HT by cyproheptadine improves cognitive function in schizophrenia disorder. Cyproheptadine is effective for treating functional gastrointestinal disorders (FGIDs). Food and Drug Administration (FDA) approved cyproheptadine, has antidepressant and antiplatelet functionality. It may be effective in treating thromboembolic disorders. Cyproheptadine inhibits lysine methyltransferase 7/9 (Set7/9) leading to a decrease in estrogen receptor (ERα) expression and growth arrest in breast cancer cells.

Features and Benefits

This compound was developed by Merck & Co., Inc., Kenilworth, NJ, U.S.. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.

Pictograms

Skull and crossbones

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Identification of cyproheptadine as an inhibitor of SET domain containing lysine methyltransferase 7/9 (Set7/9) that regulates estrogen-dependent transcription
Takemoto Y, et al.
Journal of Medicinal Chemistry, 59(8), 3650-3660 (2016)
Effects of the 5HT antagonist cyproheptadine on neuropsychological function in chronic schizophrenia
Chaudhry IB, et al.
Schizophrenia Research, 53(1-2), 17-24 (2002)
Cyproheptadine: a potentially effective treatment for functional gastrointestinal disorders in children
Krasaelap A and Madani S
Pediatric Annals, 46(3), e120-e125 (2017)
Comparative anticholinergic activities of 10 histamine H1 receptor antagonists in two functional models
Orzechowski RF, et al.
European Journal of Pharmacology, 506(3), 257-264 (2005)
H W Suh et al.
Neuropeptides, 33(2), 121-129 (2000-02-05)
The present study was designed to investigate the modulatory effects of blockade of spinal histamine receptors on antinociception induced by supraspinally administered mu-epsilon-, delta-, and kappa-opioid receptor agonists. The effects of intrathecal (i.t.) injections with cyproheptadine [a histamine-1 (H1) receptor

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