3,5-Bis(ethoxycarbonyl)-4-methyl-1H-pyrrole-2-carboxylic acid CAS 37789-75-6
| CAS No. | 37789-75-6 |
| Molecular Formula | C19H27NO |
| Molecular Weight | 285.42 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.
3,5-Bis(ethoxycarbonyl)-4-methyl-1H-pyrrole-2-carboxylic acid (CAS 37789-75-6), molecular formula C19H27NO and molecular weight 285.42 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3,5-Bis(ethoxycarbonyl)-4-methyl-1H-pyrrole-2-carboxylic acid (C19H27NO) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 3,5-Bis(ethoxycarbonyl)-4-methyl-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.
Physical & Chemical Properties
| Molecular Formula | C19H27NO |
| Molecular Weight | 285.42 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 1 |
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Why CATO?
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