methyl 3-bromo-4,5-dihydro-1,2-oxazole-5-carboxylate CAS 127141-36-0
| CAS No. | 127141-36-0 |
| Molecular Formula | C5H6BrNO3 |
| Molecular Weight | 208.01 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 methyl 3-bromo-4,5-dihydro-1,2-oxazole-5-carboxylate (CAS 127141-36-0), a certified reference material (molecular formula C5H6BrNO3, MW 208.01 g/mol) for analytical method development and quality control.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, methyl 3-bromo-4,5-dihydro-1,2-oxazole-5-carboxylate is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 208.01 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 methyl 3-bromo-4,5-dihydro-1,2-oxazole-5-carboxylate 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 | C5H6BrNO3 |
| Molecular Weight | 208.01 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related methyl Standards
- 5-Bromo-2-(methoxymethyl)-2,4-dihydro-3H-1,2,4-triazol-3-one (CAS 1630763-55-1)
- 3-Bromo-2,4-difluoroaniline (CAS 103977-79-3)
- 2-Bromo-3,4-difluoroaniline (CAS 1092349-87-5)
- 4-Bromo-2,3-difluoroaniline (CAS 112279-72-8)
- 3-Bromo-5-(difluoromethyl)pyridine (CAS 114468-04-1)
- 3-Bromo-4-(difluoromethyl)pyridine (CAS 114468-05-2)
- 2-Bromo-3-(difluoromethyl)pyridine (CAS 1211515-00-2)
- 3-Bromo-2-(difluoromethyl)pyridine (CAS 1211520-77-2)
Recommended Standards
- (Cyclohexanecarboxamidomethyl)trifluoroborate (CAS 1253177-07-9)
- 3-(2-Bromoacetyl)oxazolidin-2-one (CAS 141353-28-8)
- 2-Bromopyridine-3,5-dicarbonitrile (CAS 1221728-31-9)
- (3-Bromoisoxazole-4,5-diyl)dimethanol (CAS 153954-80-4)
- Kazusamycin B (CAS 107140-30-7)
- (2S,5R)-3,6-Diethoxy-2,5-dihydro-2-[(2S)-2-[[4-methoxy-3-(3-methoxypropoxy)phenyl]methyl]-3-methylbutyl]-5-(1-methylethyl)pyrazine (CAS 866030-33-3)
- 2-([1,1'-Biphenyl]-3-yl)-2-methylpropanoic acid (CAS 1181608-88-7)
- 5-Ethynyl-2-nitrophenol (CAS 928780-90-9)
- 2-Hydroxy-5-isopropoxybenzoic acid (CAS 1215858-23-3)
- 3-Bromo-4-(4-hydroxypiperidin-1-yl)benzaldehyde (CAS 1698411-72-1)
- 3-(4-Phenyl-3,6-dihydropyridin-1(2H)-yl)propanoic acid (CAS 720698-91-9)
- Tirzepatide Impurity 1 (CAS 2460751-66-8)
- 3-Methyltetrahydro-2H-thiopyran-4-amine (CAS 1314908-85-4)
- Gastrin Tetrapeptide (CAS 1947-37-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com