Methscopolamine Bromide - ≥98% , Muscarinic acetylcholine receptor M1 antagonist, CAS No.155-41-9, Muscarinic acetylcholine receptor M1 antagonist

CAS: 155-41-9 Cat. No.: S129958 Molecular Weight: 398.29 EC Number: 205-844-5 PubChem CID: 5459110
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
UNII-292T5234DX | (-)-scopolamine methobromide | CAS-155-41-9 | CCG-268630 | Diopal | Epoxymethamine bromide | Methscopolamine bromide [USP] | MFCD00078560 | (-)-Scopolamine methyl bromide, >=98% (HPLC), powder | 3-Oxa-9-azoniatricyclo(3.3.1.02,4)nonane,
Storage
Store at 2-8°C
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
S129958-250mg
1
$39.90
1g
S129958-1g
3
$109.90
5g
S129958-5g
2
$521.90
Enter a quantity for the sizes you want to add.
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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at 2-8°C Ships Wet ice Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 6 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Methscopolamine is a muscarinic acetylcholine receptor blocker.
A competitive antimuscarinic compound.

Specifications

Synonyms
UNII-292T5234DX | (-)-scopolamine methobromide | CAS-155-41-9 | CCG-268630 | Diopal | Epoxymethamine bromide | Methscopolamine bromide [USP] | MFCD00078560 | (-)-Scopolamine methyl bromide, >=98% (HPLC), powder | 3-Oxa-9-azoniatricyclo(3.3.1.02, 4)nonane,
Specifications & Purity
≥98%
Biochemical and Physiological Mechanisms
(-)-Scopolamine methyl bromide is a competitive antimuscarinic agent that blocks the binding of acetylcholine at muscarinic acetylcholine receptors (mAChR M) in vitro.
Storage
Store at 2-8°C
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Action Type
ANTAGONIST
Mechanism of action
Muscarinic acetylcholine receptor M1 antagonist
Purity
≥98%
Names and Identifiers
Pubchem Sid504763822
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504763822
Canonical SmilesC[N+]1(C2CC(CC1C3C2O3)OC(=O)C(CO)C4=CC=CC=C4)C.[Br-]
IUPAC Name[(1R,2R,4S,5S)-9,9-dimethyl-3-oxa-9-azoniatricyclo[3.3.1.02,4]nonan-7-yl] (2S)-3-hydroxy-2-phenylpropanoate;bromide
InChIKeyCXYRUNPLKGGUJF-OZVSTBQFSA-M
INCHI1S/C18H24NO4.BrH/c1-19(2)14-8-12(9-15(19)17-16(14)23-17)22-18(21)13(10-20)11-6-4-3-5-7-11;/h3-7,12-17,20H,8-10H2,1-2H3;1H/q+1;/p-1/t12?,13-,14-,15+,16-,17+;/m1./s1
Isomeric SMILES C[N+]1([C@@H]2CC(C[C@H]1[C@H]3[C@@H]2O3)OC(=O)[C@H](CO)C4=CC=CC=C4)C.[Br-]
PubChem CID 5459110
Molecular Weight 398.29

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassHydroxy acids and derivatives
SubclassBeta hydroxy acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentBeta hydroxy acids and derivatives
Alternative Parents Benzene and substituted derivatives  Piperidines  Morpholines  N-alkylpyrrolidines  Tetraalkylammonium salts  Carboxylic acid esters  Oxacyclic compounds  Monocarboxylic acids and derivatives  Epoxides  Dialkyl ethers  Azacyclic compounds  Organic bromide salts  Organic zwitterions  Hydrocarbon derivatives  Amines  Carbonyl compounds  Primary alcohols  Organic oxides  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Beta-hydroxy acid - Monocyclic benzene moiety - Morpholine - Oxazinane - Piperidine - N-alkylpyrrolidine - Benzenoid - Tetraalkylammonium salt - Pyrrolidine - Quaternary ammonium salt - Carboxylic acid ester - Carboxylic acid derivative - Dialkyl ether - Oxirane - Ether - Monocarboxylic acid or derivatives - Oxacycle - Azacycle - Organoheterocyclic compound - Organonitrogen compound - Hydrocarbon derivative - Organic oxygen compound - Organic nitrogen compound - Amine - Organooxygen compound - Carbonyl group - Alcohol - Primary alcohol - Organic bromide salt - Organic oxide - Organic salt - Organic zwitterion - Aromatic heteropolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as beta hydroxy acids and derivatives. These are compounds containing a carboxylic acid substituted with a hydroxyl group on the C3 carbon atom.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

10 results found

Lot NumberCertificate TypeDateItem
E2619466Certificate of AnalysisApr 10, 2026 S129958
E2619468Certificate of AnalysisApr 10, 2026 S129958
E2619483Certificate of AnalysisApr 10, 2026 S129958
E2413098Certificate of AnalysisFeb 04, 2026 S129958
G2215433Certificate of AnalysisJan 26, 2026 S129958
G2215434Certificate of AnalysisJan 26, 2026 S129958
D23061270Certificate of AnalysisJan 10, 2025 S129958
L2518521Certificate of AnalysisApr 11, 2024 S129958
J2112303Certificate of AnalysisJul 10, 2023 S129958
J2112374Certificate of AnalysisJul 10, 2023 S129958
Chemical and Physical Properties
SolubilitySoluble in water (50 mg/ml).
Specific Rotation[α]-24°C
Molecular Weight398.300 g/mol
XLogP3
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count5
Rotatable Bond Count5
Exact Mass397.089 Da
Monoisotopic Mass397.089 Da
Topological Polar Surface Area59.100 Ų
Heavy Atom Count24
Formal Charge0
Complexity454.000
Isotope Atom Count0
Defined Atom Stereocenter Count5
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count2
Citations of This Product
References
1. Song Changgeng, Zhao Yan, Zhang Jiajia, Dong Ziyi, Kang Xin, Pan Yuqi, Du Jinle, Gao Yiting, Zhang Haifeng, Xi Ye, Ding Hui, Kuang Fang, Wang Wenting, Luo Ceng, Zhang Zhengping, Zhao Qinpeng, Yang Jiazhou, Jiang Wen, Wu Shengxi, Gao Fang.  (2023)  Spatial Distribution of Parvalbumin-Positive Fibers in the Mouse Brain and Their Alterations in Mouse Models of Temporal Lobe Epilepsy and Parkinson’s Disease.  Neuroscience Bulletin,      [PMID:37523099] [10.1007/s12264-023-01083-0]
2. Song Changgeng, Zhao Jingjing, Hao Jianmin, Mi Dan, Zhang Jiajia, Liu Yingying, Wu Shengxi, Gao Fang, Jiang Wen.  (2023)  Aminoprocalcitonin protects against hippocampal neuronal death via preserving oxidative phosphorylation in refractory status epilepticus.  Cell Death Discovery,  (1): (1-18).  [PMID:37142587] [10.1038/s41420-023-01445-7]
3. Fankai Gao, Rui Chen, Shuo Li, An Li, Bo Bai, Rulin Mi, Guofang Xue.  (2023)  (+)-Borneol exerts neuroprotective effects via suppressing the NF-κB pathway in the pilocarpine-induced epileptogenesis rat model.  BRAIN RESEARCH,      [PMID:37127175] [10.1016/j.brainres.2023.148382]
4. Huijie Huangfu, Xugeng Guo, Ning Li, Ye Xiong, Yafei Huang, Jinglai Zhang, Li Wang.  (2023)  A smart composite coating with self-reporting and self-healing functions to enhance corrosion protection for magnesium alloys.  PROGRESS IN ORGANIC COATINGS,      [PMID:] [10.1016/j.porgcoat.2023.107598]
5. Dai Jie, Shen Hai-lin, Li Jia, Zhou Yong, Dong Zheng-xie, Zhu Xiang-yang.  (2024)  Gastrodin Attenuates Neuroinflammation and Injury in Young Rats with LiCl/Pilocarpine-Induced Status Epilepticus.  BIOCHEMICAL GENETICS,      [PMID:39570508] [10.1007/s10528-024-10971-7]
6. Yang Yu, Li Xingchang, Gong Shuxian, Sui Lisen, Liu Jian, Yu Fangjun, Zhang Tianpeng.  (2025)  E4BP4-Driven Circadian SLC6A1 Expression Governs Tiagabine Chronoefficacy in Temporal Lobe Epilepsy.  MOLECULAR NEUROBIOLOGY,  63  (1): (242).  [PMID:41335220] [10.1007/s12035-025-05498-w]
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