ALOSETRON HYDROCHLORIDE

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Trade Names	ALOSETRON HYDROCHLORIDE LOTRONEX
Synonyms	Alosetron hcl Alosetron hydrochloride GR 68755C GR-68755C Lotronex Lotrpnex
Status
Molecule Category	Salt-form
UNII	2F5R1A46YW
EPA CompTox	DTXSID8044208
Parent Compound:	ALOSETRON

Structure


InChI Key	FNYQZOVOVDSGJH-UHFFFAOYSA-N
Smiles	Cc1[nH]cnc1CN1CCc2c(c3ccccc3n2C)C1=O.Cl
InChI	InChI=1S/C17H18N4O.ClH/c1-11-13(19-10-18-11)9-21-8-7-15-16(17(21)22)12-5-3-4-6-14(12)20(15)2;/h3-6,10H,7-9H2,1-2H3,(H,18,19);1H

Physicochemical Descriptors

Property Name	Value
Molecular Formula	C17H19ClN4O
Molecular Weight	330.82
AlogP	2.41
Hydrogen Bond Acceptor	3.0
Hydrogen Bond Donor	1.0
Number of Rotational Bond	2.0
Polar Surface Area	53.92
Molecular species	NEUTRAL
Aromatic Rings	3.0
Heavy Atoms	22.0

Pharmacology

Mechanism of Action	Action	Reference
Serotonin 3a (5-HT3a) receptor antagonist	ANTAGONIST	DailyMed

Target Conservation


Protein: Serotonin 3a (5-HT3a) receptor Description: 5-hydroxytryptamine receptor 3A Organism : Homo sapiens P46098 ENSG00000166736

Cross References

Resources	Reference
ChEBI	53783
ChEMBL	CHEMBL1200885
FDA SRS	2F5R1A46YW
Guide to Pharmacology	2296
KEGG	D07129
PubChem	60758
SureChEMBL	SCHEMBL806
ZINC	ZINC13537284

CONTENTS

EcoDrug+ was developed under the PREMIER Innovative Medicines Initiative 2 Joint Undertaking (JU) under grant agreement No 875508. The JU receives support from the EU’s Horizon 2020 research and innovation programme and the European Federation of Pharmaceutical Industries and Associations (EFPIA). The views reflect only the authors’ perspective and the JU is not responsible for any use that may be made of the information EcoDrug+ contains.

Elements of EcoDrug+ were developed under the Biocenter Finland Drug Discovery and Chemical Biology network. CSC-IT Center for Science Ltd is thanked for providing computational resources. Credit is given to Ensembl for collecting species images (provided under public domain licences such as Wikimedia and NHGRI).

Content of EcoDrug+ is provided without guarantee for correctness.

Cite Us:

Ashenafi Legehar, Siobhán Monaghan, Mael Briand, Akseli Niemelä, Leo Ghemtio, Ziaurrehman Tanoli, A Ross Brown, Charles R Tyler, Henri Xhaard, EcoDrug PLUS: an advanced database for drug target conservation analysis and environmental risk assessment, Nucleic Acids Research, 2025, gkaf1251 Read...

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Last update: Monday, 3 November 2025