Methantheline Bromide

Modify Date: 2026-07-27 17:10:07

Methantheline Bromide Structure
Methantheline Bromide structure
Common Name Methantheline Bromide
CAS Number 53-46-3 Molecular Weight 420.34000
Density N/A Boiling Point N/A
Molecular Formula C21H26BrNO3 Melting Point N/A
MSDS N/A Flash Point N/A

 Use of Methantheline Bromide


Methantheline Bromide is a synthetic antispasmodic. It is used to relieve cramps or spasms of the stomach, intestines, and bladder. Methantheline is used to treat intestine or stomach ulcers (peptic ulcer disease), intestine problems, pancreatitis, gastritis, biliary dyskinesia, pylorosplasm, or urinary problems.

Summary: Methantheline Bromide (53-46-3), with molecular formula C21H26BrNO3 and molecular weight 420.34, is used to relieve cramps or spasms of the stomach, intestines, and bladder. For research-use only, not for medical or clinical usage.


 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name methantheline bromide (200 mg)
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Molecular Formula C21H26BrNO3
Molecular Weight 420.34000
Exact Mass 419.11000
PSA 35.53000
LogP 0.95780
InChIKey PQMWYJDJHJQZDE-UHFFFAOYSA-M
SMILES CC[N+](C)(CC)CCOC(=O)C1c2ccccc2Oc2ccccc21.[Br-]

 Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
BP7632500
CHEMICAL NAME :
Ammonium, diethyl(2-hydroxyethyl)methyl-, bromide, xanthene-9-carboxylate
CAS REGISTRY NUMBER :
53-46-3
LAST UPDATED :
199712
DATA ITEMS CITED :
9
MOLECULAR FORMULA :
C21-H26-N-O3.Br
MOLECULAR WEIGHT :
420.39
WISWESSER LINE NOTATION :
T C666 BO IHJ IVO2K2&2&1 &Q &E

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
400 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PSEBAA Proceedings of the Society for Experimental Biology and Medicine. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1903/04- Volume(issue)/page/year: 78,708,1951
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
4800 ug/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 1,391,1959
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
460 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,357,1982
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
46 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 106,141,1952
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
600 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 8,107,1958
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
4300 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4- 1898- Volume(issue)/page/year: 105,221,1956
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
460 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 104,54,1952
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
23 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PSEBAA Proceedings of the Society for Experimental Biology and Medicine. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1903/04- Volume(issue)/page/year: 78,576,1951 ** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
7935 mg/kg/95D-I
TOXIC EFFECTS :
Peripheral Nerve and Sensation - spastic paralysis with or without sensory change Kidney, Ureter, Bladder - interstitial nephritis Related to Chronic Data - death
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 104,54,1952

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

RIDADR NONH for all modes of transport
HS Code 2932999099

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

~%

Methantheline Bromide Structure

Methantheline B...

CAS#:53-46-3

Learn More
Literature: US2659732 , ; DE948333 , ;

~%

Methantheline Bromide Structure

Methantheline B...

CAS#:53-46-3

Learn More
Literature: Pharmaceutical Bulletin, , vol. 3, p. 417,420

 Precursor & DownStream

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor  3

DownStream  0

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2932999099
Summary 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Methantheline BromideBioassay

View more

This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Luminescence-based cell-based primary high throughput screening assay to identify ago...
Source: The Scripps Research Institute Molecular Screening Center
Target: mu-type opioid receptor isoform MOR-1 [Homo sapiens]
External Id: OPRM1-OPRD1_AG_LUMI_1536_1X%ACT PRUN
Name: Primary qHTS assay for inhibitors of alpha-synuclein gene (SNCA) expression
Source: NCGC
External Id: SNCA-p-activity-luciferase
Name: Fluorescence-based cell-based primary high throughput screening assay to identify ago...
Source: The Scripps Research Institute Molecular Screening Center
Target: muscarinic acetylcholine receptor M1 [Homo sapiens]
External Id: CHRM1_AG_FLUO8_1536_1X%ACT PRUN
Name: Dicer-mediated maturation of pre-microRNA
Source: Center for Chemical Genomics, University of Michigan
Target: N/A
External Id: TargetID_659_CEMA
Name: Fluorescence-based cell-based primary high throughput screening assay to identify pos...
Source: The Scripps Research Institute Molecular Screening Center
Target: muscarinic acetylcholine receptor M1 [Homo sapiens]
External Id: CHRM1_PAM_FLUO8_1536_1X%ACT PRUN
Name: Fluorescence polarization-based biochemical high throughput primary assay to identify...
Source: The Scripps Research Institute Molecular Screening Center
Target: RecName: Full=Sialate O-acetylesterase; AltName: Full=H-Lse; AltName: Full=Sialic acid-specific 9-O-acetylesterase; Flags: Precursor [Homo sapiens]
External Id: SIAE_INH_FP_1536_1X%INH PRUN
Total 374, Current Page 1 of 38
1
2
3
4
5

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

asabaine
Methanthelinium bromide
mtb51
diethyl-methyl-[2-(xanthene-9-carbonyloxy)-ethyl]-ammonium,bromide
sc2910
ulcine
N,N-diethyl-N-methyl-2-[(9H-xanthen-9-ylcarbonyl)oxy]-ethanaminium
methanthelinium bromide
banthin
Diaethyl-methyl-[2-(xanthen-9-carbonyloxy)-aethyl]-ammonium,Bromid
avagal
Ulcine Bromide
methantheline bromide
doladene
metaxan
banthine
vagamin

 Methantheline Bromide | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the English name of methantheline bromide (200 mg)?
A: The English name of methantheline bromide (200 mg) is methantheline bromide (200 mg).
Q: What is the CAS number of methantheline bromide (200 mg)?
A: CAS number of methantheline bromide (200 mg) is 53-46-3.
Q: What is the LogP of methantheline bromide (200 mg)?
A: LogP of methantheline bromide (200 mg) is 0.95780.
Q: What is the molecular formula of methantheline bromide (200 mg)?
A: Molecular formula of methantheline bromide (200 mg) is C21H26BrNO3.
Q: What are the uses of methantheline bromide (200 mg)?
A: Main uses of methantheline bromide (200 mg): Methantheline Bromide is a synthetic antispasmodic. It is used to relieve cramps or spasms of the stomach, intestines, and bladder. Methantheline is used to treat intestine or stomach ulcers (peptic ulcer disease), intestine problems, pancreatitis, gastritis, biliary dyskinesia, pylorosplasm, or urinary problems.
Q: What English synonyms does methantheline bromide (200 mg) have?
A: English synonyms of methantheline bromide (200 mg): asabaine, Methanthelinium bromide, mtb51, diethyl-methyl-[2-(xanthene-9-carbonyloxy)-ethyl]-ammonium,bromide, sc2910, ulcine, N,N-diethyl-N-methyl-2-[(9H-xanthen-9-ylcarbonyl)oxy]-ethanaminium, methanthelinium bromide, banthin, Diaethyl-methyl-[2-(xanthen-9-carbonyloxy)-aethyl]-ammonium,Bromid, avagal, Ulcine Bromide, methantheline bromide, doladene, metaxan, banthine, vagamin.
Q: What is the SMILES notation of methantheline bromide (200 mg)?
A: SMILES notation of methantheline bromide (200 mg) is CC[N+](C)(CC)CCOC(=O)C1c2ccccc2Oc2ccccc21.[Br-].
Q: What are the upstream materials of methantheline bromide (200 mg)?
A: Related upstream materials(CAS) of methantheline bromide (200 mg): 74-83-9;24539-72-8;82-07-5.
Q: What is the molecular weight of methantheline bromide (200 mg)?
A: Molecular weight of methantheline bromide (200 mg) is 420.34000.
Q: What is the polar surface area (PSA) of methantheline bromide (200 mg)?
A: Polar surface area (PSA) of methantheline bromide (200 mg) is 35.53000.

 Methantheline Bromidefactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.