Methyl 5-acetoxy-4-(2-methoxy-2-oxoethyl)-2-methyl-1H-pyrrole-3-carboxylate CAS 77978-85-9
| CAS No. | 77978-85-9 |
| Molecular Formula | C12H15NO6 |
| Molecular Weight | 269.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Methyl 5-acetoxy-4-(2-methoxy-2-oxoethyl)-2-methyl-1H-pyrrole-3-carboxylate (CAS 77978-85-9) is a high-purity analytical reference standard with the molecular formula C12H15NO6 and a molecular weight of 269.25 g/mol.
Structurally, Methyl 5-acetoxy-4-(2-methoxy-2-oxoethyl)-2-methyl-1H-pyrrole-3-carboxylate (C12H15NO6) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 269.25 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Methyl 5-acetoxy-4-(2-methoxy-2-oxoethyl)-2-methyl-1H-pyrrole-3-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C12H15NO6 |
| Molecular Weight | 269.25 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 1 |
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