Methyl 5-acetyl-1,2,4-trimethyl-1H-pyrrole-3-carboxylate CAS 90433-82-2
| CAS No. | 90433-82-2 |
| Molecular Formula | C11H15NO3 |
| Molecular Weight | 209.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C11H15NO3, Methyl 5-acetyl-1,2,4-trimethyl-1H-pyrrole-3-carboxylate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 209.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Methyl 5-acetyl-1,2,4-trimethyl-1H-pyrrole-3-carboxylate (CAS 90433-82-2), molecular formula C11H15NO3 and molecular weight 209.24 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), Methyl 5-acetyl-1,2,4-trimethyl-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 | C11H15NO3 |
| Molecular Weight | 209.24 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, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 1 |
Recommended Standards
- Methyl 5-(pyrrolidin-1-ylmethyl)furan-2-carboxylate (CAS 26095-06-7)
- Methyl 5-amino-2-isopropoxybenzoate (CAS 346704-80-1)
- Methyl 4-amino-3-isopropoxybenzoate, 97% (CAS 681465-85-0)
- Methyl 5-cyclohexyloxazole-4-carboxylate (CAS 827028-62-6)
- 2-[4-[2-(Diethylamino)ethoxy]phenyl]-1-phenylethanone (CAS 35258-44-7)
- Fmoc-Lys(Fmoc)-OPfp (CAS 132990-14-8)
- 3,4-Dihydro-5,8-dimethoxyisoquinoline Hydrochloride (CAS 29983-76-4)
- 2-(5,7-Dioxo-5H-pyrrolo[3,4-b]pyridin-6(7H)-yl)propanoic acid (CAS 131615-98-0)
- 3-methyl-N-[[(1R,2R)-2-allylcyclopropoxy]carbonyl]-L-valine compd. with (S)-1-Phenylethanamine (1:1) (CAS 1799733-54-2)
- 3-Chloro-6-methylpyridazine-4-carboxylic acid (CAS 914637-40-4)
- Methyl 3-(4-bromo-1-methyl-1H-pyrazol-3-yl)propanoate (CAS 2306271-25-8)
- 6-Methyl-1H-pyrrolo[3,2-b]pyridin-5-amine (CAS 2891455-69-7)
- Aminooxy-PEG3-C2-thiol (CAS 1200365-63-4)
- Peptide T (CAS 106362-32-7)
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