4-(3-Methylbutanoyl)-1H-pyrrole-2-carboxylic acid CAS 478259-56-2
| CAS No. | 478259-56-2 |
| Molecular Formula | C10H13NO3 |
| Molecular Weight | 195.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
4-(3-Methylbutanoyl)-1H-pyrrole-2-carboxylic acid (CAS 478259-56-2), molecular formula C10H13NO3 and molecular weight 195.22 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H13NO3, 4-(3-Methylbutanoyl)-1H-pyrrole-2-carboxylic acid 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 195.22 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).
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.
Physical & Chemical Properties
| Molecular Formula | C10H13NO3 |
| Molecular Weight | 195.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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.) | 2025 |
| Nitrogen Atoms | 1 |
Related Methylbutanoyl Standards
- (3-Methylbutanoyl)proline (CAS 60804-39-9)
- (3-Methylbutanoyl)-l-valine (CAS 39741-06-5)
- 4-(3-Methylbutanoyl)phenylboronic acid (CAS 1256346-29-8)
- 1-(3-Methylbutanoyl)piperidin-3-amine (CAS 1114596-49-4)
- 1-(3-methylbutanoyl)piperidin-4-one (CAS 919118-55-1)
- 3-(2-Methylbutanoyl)cyclohexan-1-one (CAS 96948-56-0)
- Methyl 4-(3-methylbutanoyl)-1H-pyrrole-2-carboxylate (CAS 478259-48-2)
- Methyl 4-(3-methylbutanoyl)-1H-pyrrole-3-carboxylate (CAS 227321-68-8)
Recommended Standards
- 4-(2-Methylpyrimidin-4-yl)benzonitrile (CAS 874778-89-9)
- 4-(4-Aminophenoxy)butanoic acid (CAS 851757-04-5)
- 4-(2-Fluorophenyl)-4h-1,2,4-triazole-3-thiol (CAS 52747-56-5)
- 4-(4-Aminophenyl)-1,3-dioxan-5-ol (CAS 924845-83-0)
- 2-(4-Methoxyphenyl)-2-oxoethyl 2-hydroxy-5-methylbenzoate (CAS 1197834-98-2)
- 5-Chloro-2-nitro-4-(trifluoromethoxy)aniline (CAS 914637-23-3)
- 3-(Trimethylsilyl)propynylzinc bromide, 0.50 M in THF (CAS 123871-69-2)
- methyl 2-cyano-5-iodo-benzoate (CAS 58332-00-6)
- Selexipag Impurity 43 (CAS CATO-C4X-196143)
- DL-Norleucine (CAS 616-06-8)
- (S)-1-Methylpyrrolidine-2-carboxamide (CAS 94391-71-6)
- Manganese(II) formate (CAS 3251-96-5)
- Flurbiprofen Impurity 78 (CAS CATO-C4X-144478)
- Fibrinogen Related Peptide (CAS 80755-86-8)
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