Methyl 5-bromo-4-ethyl-1h-pyrrole-3-carboxylate CAS 881674-31-3
| CAS No. | 881674-31-3 |
| Molecular Formula | C8H10BrNO2 |
| Molecular Weight | 232.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 5-bromo-4-ethyl-1h-pyrrole-3-carboxylate (CAS 881674-31-3), molecular formula C8H10BrNO2 and molecular weight 232.07 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution, Methyl 5-bromo-4-ethyl-1h-pyrrole-3-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 232.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 5-bromo-4-ethyl-1h-pyrrole-3-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 | C8H10BrNO2 |
| Molecular Weight | 232.07 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 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.) | 1987 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Methyl Standards
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- 2-Bromo-5-(2-methoxyethoxy)pyridine (CAS 1144110-14-4)
- 5-Bromo-2-(dimethoxymethyl)pyridine (CAS 1150632-94-2)
- 3-Bromo-2,5-dimethoxyaniline (CAS 115929-62-9)
- 5-Bromo-1-(2-methoxyethyl)pyridin-2(1H)-one (CAS 1160790-03-3)
- Methyl 4-bromo-2,5-dimethyl-1H-pyrrole-3-carboxylate (CAS 120935-94-6)
Recommended Standards
- Ethyl 5-bromo-4-methyl-1H-pyrrole-3-carboxylate (CAS 874496-31-8)
- O-(5-bromo-2-methoxybenzyl)hydroxylamine (CAS 23993-41-1)
- Ethyl 4-bromo-3-methyl-1H-pyrrole-2-carboxylate (CAS 89909-42-2)
- trans-2-Butenylpyrophosphate (CAS 22342-68-3)
- 2-Ethyl-5-nitroisoindolin-1-one (CAS 1256961-17-7)
- 1-(2-Bromo-1-isobutoxyethyl)-4-methoxybenzene (CAS 1249403-35-7)
- 5-Amino-2-(4H-1,2,4-triazol-4-yl)phenol (CAS 1481012-12-7)
- 6-[[3-[(1S)-2-Methoxy-1-methylethoxy]-5-[(1S)-1-methyl-2-phenylethoxy]benzoyl]amino]-3-pyridinecarboxylic Acid (CAS 851884-87-2)
- 3-(4-Fluorophenyl)-4-methyl-5-(methylthio)-4H-1,2,4-triazole (CAS 116850-63-6)
- 2-Bromo-3-(difluoromethyl)-5-methoxy-6-methylpyridine (CAS 1805348-30-4)
- 2,2-dimethoxybutane (CAS 3453-99-4)
- 5-Fluoro-2-(4-methyl-1-piperidyl)aniline (CAS 869943-97-5)
- Guanylin (human) (CAS 183200-12-6)
- Semaglutide impurity 29 (CAS 110990-08-4)
Why CATO?
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