PYRROBUTAMINE

U.S. Department of Health & Human Services Divider Arrow

National Institutes of Health Divider Arrow

NCATS

US Previously Marketed

First approved in 1952

US Previously Marketed

First approved in 1952

Details

Stereochemistry	ACHIRAL
Molecular Formula	C20H22ClN
Molecular Weight	311.848
Optical Activity	NONE
Defined Stereocenters	0 / 0
E/Z Centers	1
Charge	0

SHOW SMILES / InChI

Structure of PYRROBUTAMINE

Structure Search

SMILES

ClC1=CC=C(CC(=CCN2CCCC2)C3=CC=CC=C3)C=C1

InChI

InChIKey=WDYYVNNRTDZKAZ-UHFFFAOYSA-N

InChI=1S/C20H22ClN/c21-20-10-8-17(9-11-20)16-19(18-6-2-1-3-7-18)12-15-22-13-4-5-14-22/h1-3,6-12H,4-5,13-16H2

HIDE SMILES / InChI

Molecular Formula	C20H22ClN
Molecular Weight	311.848
Charge	0
Count

Stereochemistry	ACHIRAL
Additional Stereochemistry	No
Defined Stereocenters	0 / 0
E/Z Centers	1
Optical Activity	NONE

Description
Sources: https://www.drugfuture.com/chemdata/pyrrobutamine.html | https://www.ncbi.nlm.nih.gov/pubmed/13114796

PYRROBUTAMINE is a potent H1-antihistamine. H1-antihistamines interfere with the agonist action of histamine at the H1 receptor and are administered to attenuate the inflammatory process in order to treat conditions such as allergic rhinitis, allergic conjunctivitis, and urticaria.

Approval Year

Conditions

Conditions

Condition	Modality	Targets	Highest Phase	Product
Allergy 44 Sources: https://www.ncbi.nlm.nih.gov/pubmed/14949084	Palliative		Approved 8583	Pyronil Approved Use Antihistaminic

Sourcing

Sourcing

Vendor/Aggregator	ID	URL
Alfa Chemistry	ACM28296642
Compound Cloud	5284614
eMolecules	45955538
Norris Pharm	NSZB-A030895
Toronto Research Chemicals	P997800
ZINC	ZINC000004474657	http://zinc15.docking.org/substances/ZINC000004474657
ZINC	ZINC000015848271	http://zinc15.docking.org/substances/ZINC000015848271

PubMed

PubMed

Title	Date	PubMed
Chemical and pharmacological characteristics of the antihistaminic compound, pyrrobutamine.	1953-11-01	13114796
Antihistaminic action of pyronil.	1952-07	14949084

Substance Class	Chemical Created by `admin` on `Mon Mar 31 17:53:25 GMT 2025` Edited by `admin` on `Mon Mar 31 17:53:25 GMT 2025`
Record UNII	VE6KP18S8X
Record Status	`Validated (UNII)`
Record Version

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Name

Type

Language

1-(.GAMMA.-(P-CHLOROBENZYL)CINNAMYL)PYRROLIDINE

Preferred Name

English

PYRROBUTAMINE

Common Name

English

Pyrrobutamine [WHO-DD]

Common Name

English

PYRROLIDINE, 1-(4-(4-CHLOROPHENYL)-3-PHENYL-2-BUTENYL)-

Systematic Name

English

PYRROBUTAMINE [MI]

Common Name

English

Classification Tree Code System Code

NCI_THESAURUS

C29578

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

WHO-VATC

QR06AX58

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

WHO-ATC

R06AX08

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

WHO-ATC

R06AX58

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

WHO-VATC

QR06AX08

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

Code System Code Type Description

SMS_ID

100000078935

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

PRIMARY

WIKIPEDIA

PYRROBUTAMINE

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

PRIMARY

EPA CompTox

DTXSID9023544

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

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DRUG BANK

DB13846

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

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DRUG CENTRAL

2334

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

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CAS

91-82-7

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

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NCI_THESAURUS

C81146

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

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MESH

C013665

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

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MERCK INDEX

m9396

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

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Merck Index

ChEMBL

CHEMBL1697849

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

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ECHA (EC/EINECS)

202-101-7

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

PRIMARY

PUBCHEM

8669

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

PRIMARY

EVMPD

SUB15066MIG

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

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FDA UNII

VE6KP18S8X

Created by admin on Mon Mar 31 17:53:25 GMT 2025 , Edited by admin on Mon Mar 31 17:53:25 GMT 2025

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SALT/SOLVATE -> PARENT

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ACTIVE MOIETY