3-bromo-1-methylpyrrolidin-2-one CAS 33693-57-1
| CAS No. | 33693-57-1 |
| Molecular Formula | C5H8BrNO |
| Molecular Weight | 178.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies 3-bromo-1-methylpyrrolidin-2-one (CAS 33693-57-1), a certified reference material (molecular formula C5H8BrNO, MW 178.03 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H8BrNO, 3-bromo-1-methylpyrrolidin-2-one contains an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 178.03 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 3-bromo-1-methylpyrrolidin-2-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H8BrNO |
| Molecular Weight | 178.03 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 3-Bromopiperidin-2-one (CAS 34433-86-8)
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- 2-(2-bromoethoxy)propanenitrile (CAS 854679-28-0)
- 4-(Bromomethyl)pyrrolidin-2-one (CAS 945671-51-2)
- 1-([1,1'-Biphenyl]-4-yl)-2-methoxyethan-1-one (CAS 96187-87-0)
- PHenyl 3,4,6-tri-o-acetyl-2-deoxy-2-phthalimido-beta-d-selenoglucopyranoside (CAS 136810-00-9)
- 2-(4-((4-Chlorophenyl)(cyano)methyl)phenyl)-1H-benzo[d]imidazole-6-carboxamide (CAS 780778-77-0)
- 3-(Aminomethyl)-5-cyclopropoxy-N,N-dimethylaniline (CAS 1243470-42-9)
- (2,2-Dimethoxyethyl)cyclobutane (CAS 90253-02-4)
- 5-Methyl-2-(methylthio)-7-oxo-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylic acid (CAS 63977-57-1)
- (S)-2-Amino-1-((R)-3-(isopropyl(methyl)amino)piperidin-1-yl)propan-1-one (CAS 1401666-16-7)
- 5,5'-(4,4'-Diamino-[1,1'-biphenyl]-3,3'-diyl)dipentanoic acid (CAS 35400-51-2)
- Potassium 5-cyclopropyl-1,2-oxazole-3-carboxylate (CAS 2098049-10-4)
- Endo-Pro36-Tirzepatide (CAS CATO-CPTD788688)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com