Methyl 4-Bromo-5-chloro-1H-pyrrole-2-carboxylate CAS 1629633-64-2
| CAS No. | 1629633-64-2 |
| Molecular Formula | C6H5BrClNO2 |
| Molecular Weight | 238.47 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.
Methyl 4-Bromo-5-chloro-1H-pyrrole-2-carboxylate (CAS 1629633-64-2), molecular formula C6H5BrClNO2 and molecular weight 238.47 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Methyl 4-Bromo-5-chloro-1H-pyrrole-2-carboxylate (C6H5BrClNO2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 238.47 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures Methyl 4-Bromo-5-chloro-1H-pyrrole-2-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 | C6H5BrClNO2 |
| Molecular Weight | 238.47 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
Related Methyl Standards
- 5-Bromo-4-chloro-6-methoxypyrimidin-2-amine (CAS 1158074-71-5)
- 4-Bromo-5-chloro-N-methylfuran-2-carboxamide (CAS 1427021-10-0)
- Methyl 4-Bromo-3-chloropyrrole-2-carboxylate (CAS 1629633-72-2)
- 5-Bromo-6-chloro-2-(methylamino)pyrimidin-4(3H)-one (CAS 1706429-53-9)
- 4-Bromo-3-chloro-5-methyl-1H-pyrrole-2-carboxylic acid (CAS 907545-39-5)
- 5-Bromo-6-chloro-3-methoxypyrazin-2-amine (CAS 566205-00-3)
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Recommended Standards
- 3-Fluoro-5-(trichloromethyl)benzonitrile (CAS 1121586-25-1)
- 2,6-Bis(trimethylsilyl)phenol (CAS 18036-71-0)
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- Trimethyl(2-((trimethylsilyl)oxy)phenyl)silane (CAS 18036-83-4)
- 4,4'-Bis(mercaptomethyl) Biphenyl (CAS 43012-19-7)
- (S)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-azidopropanoic acid (CAS 880637-82-1)
- 7-(Pyrimidin-5-yl)-1,7-diazaspiro[4.4]nonane (CAS 646056-03-3)
- 2-(Difluoromethoxy)-N-(4-(2-methyloxazol-5-yl)phenyl)benzamide (CAS 1311855-96-5)
- H-His-Pro-NH2 . 2 HBr (G-4185.0250) (CAS 59760-04-2)
- N-((2-methylcyclopentyl)methyl)thietan-3-amine (CAS 1862377-07-8)
- (3S,4S)-tert-butyl 3-(benzyl(benzyloxycarbonyl)amino)-4-hydroxypyrrolidine-1-carboxylate (CAS 708273-38-5)
- 2H,3H,4H-pyrano[2,3-b]pyridine-2,4-dione (CAS 147167-23-5)
- Irinotecan impurity 57 (CAS CATO-C4X-166757)
- Acetyl-Exenatide trifluoroacetate salt (CAS 305815-28-5)
Why CATO?
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