Methyl 4-bromooxazole-5-carboxylate CAS 1134560-77-2
| CAS No. | 1134560-77-2 |
| Molecular Formula | C5H4BrNO3 |
| Molecular Weight | 205.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C5H4BrNO3, Methyl 4-bromooxazole-5-carboxylate contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 205.99 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.
Methyl 4-bromooxazole-5-carboxylate (CAS 1134560-77-2), molecular formula C5H4BrNO3 and molecular weight 205.99 g/mol, is a CATO reference standard with documented purity and traceability.
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 manufactures Methyl 4-bromooxazole-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 | C5H4BrNO3 |
| Molecular Weight | 205.99 g/mol |
| Appearance | Off-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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Methyl Standards
- Methyl 2-bromooxazole-5-carboxylate (CAS 1092351-96-6)
- 2-Bromooxazole-4-carboxylic acid (CAS 1167055-73-3)
- 2-Bromooxazole-5-carboxylic acid (CAS 1373253-25-8)
- 5-Bromooxazole-2-carboxylic acid (CAS 1935087-98-1)
- 4-Bromooxazole-2-carboxylic Acid (CAS 944906-74-5)
- Ethyl 2-bromooxazole-5-carboxylate (CAS 1060816-22-9)
- Ethyl 5-bromooxazole-4-carboxylate (CAS 1097306-75-6)
- Ethyl 4-bromooxazole-5-carboxylate (CAS 1258283-17-8)
Recommended Standards
- 2-Bromo-4-methyl-oxazole-5-carboxylic acid (CAS 1140626-96-5)
- Methyl 2-bromo-4-oxazolecarboxylate (CAS 1092351-94-4)
- 5-Bromo-2-methyloxazole-4-carboxylic acid (CAS 1209573-86-3)
- 5-Iodopyrimidine (CAS 31462-58-5)
- N-(3-chloro-4-methylphenyl)-2-((5-(4-methoxyphenyl)-4-methyl-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 335396-50-4)
- 2-Phenoxypyridin-4-amine (CAS 21203-83-8)
- tert-Butyl (2-((tert-butoxycarbonyl)amino)ethyl)(methyl)carbamate (CAS 105983-83-3)
- H-D-Arg(Me)-OH (F-4275.0025) (CAS 137694-75-8)
- tert-Butyl (2-fluoro-5-methylpyridin-4-yl)carbamate (CAS 1935385-78-6)
- 6-Bromo-4-(difluoromethyl)-5-(trifluoromethyl)picolinonitrile (CAS 1805346-33-1)
- 2-Methyl-1,3-thiazole-5-carbonyl chloride (CAS 60971-72-4)
- 1-(9H-purin-6-yl)piperidin-3-ol (CAS 1206970-63-9)
- Ethyl (3E)-3-{2-[2,4-dichloro-5-(2-methoxyethoxy)phenyl]hydrazin-1-ylidene}-4,4,4-trifluorobutanoate (CAS 866136-37-0)
- Peptide Impurity 34 (CAS 21282-09-7)
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