4-Bromo-5-nitro-1h-pyrrole-2-carboxylic acid CAS 1146289-91-9
| CAS No. | 1146289-91-9 |
| Molecular Formula | C5H3BrN2O4 |
| Molecular Weight | 234.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-Bromo-5-nitro-1h-pyrrole-2-carboxylic acid 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.
4-Bromo-5-nitro-1h-pyrrole-2-carboxylic acid (CAS 1146289-91-9), molecular formula C5H3BrN2O4 and molecular weight 234.99 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H3BrN2O4, 4-Bromo-5-nitro-1h-pyrrole-2-carboxylic acid contains a carbohydrate-derived structure, an amide group, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 234.99 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H3BrN2O4 |
| Molecular Weight | 234.99 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) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 5-Bromo-2,6-dihydroxypyrimidine-4-carboxylic acid (CAS 15018-62-9)
- 2-Bromo-1H-imidazole-4,5-dicarboxylic acid (CAS 773099-17-5)
- 5-Bromo-4-hydroxy-3-nitropyridin-2(1H)-one (CAS 408328-18-7)
- ethyl 2-bromo-3,3,3-trifluoropropanoate (CAS 108221-68-7)
- 2-Bromo-5,5,5-trifluoropentanoic acid (CAS 1346521-32-1)
- Methyl 2-bromo-4,4,4-trifluorobutanoate (CAS 1365988-14-2)
- 2-Bromo-3,3,3-trifluoropropyl acetate (CAS 383-68-6)
- 2-Bromo-4,4,4-trifluoro-3-methylbutanoic acid (CAS 914635-99-7)
Recommended Standards
- 2-CHLORO-1,1,2,2-TETRAFLUORO-ETHANESULFONYL CHLORIDE (CAS 89740-40-9)
- 4,6-Dichloro-5-fluoro-2-(trifluoromethyl)pyrimidine (CAS 96819-55-5)
- (2-(3,4-Difluorophenyl)pyridin-4-yl)boronic acid (CAS 2225173-47-5)
- 2,4-Dichloro-5-fluoro-6-(trifluoromethyl)pyrimidine (CAS 96819-53-3)
- 2-(3-((Benzyl(cyclopropyl)amino)methyl)piperidin-1-yl)acetic acid (CAS 1353985-41-7)
- 4-(2-Carboxycyclopropyl)-1-methyl-1lambda5-benzoate (CAS 1266869-44-6)
- Pyrazolo[1,5-a][1,3,5]triazine-2,4-diamine (CAS 71680-61-0)
- 2-(2,2-Dimethylpropanoyl)thiazole (CAS 87978-53-8)
- 1H-Indole-3-carbonitrile, 4,6-dichloro-1-methyl- (CAS 2110185-90-3)
- N-(piperidin-4-yl)pyridin-4-amine hydrochloride (CAS 1176419-79-6)
- n-(5-Acetyl-4-methylthiazol-2-yl)-2-chloro-N-cyclopropylbenzamide (CAS 881474-28-8)
- (3S,5S)-5-(difluoromethyl)pyrrolidin-3-ol (CAS 2306254-95-3)
- tert-butyl 3,3-dimethyl-4-oxo-pyrrolidine-1-carboxylate (CAS 1824385-39-8)
- Tirzepatide Impurity 44 (CAS CATO-C4X-324044)
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