2-(2,5-Dioxo-2,5-dihydro-1h-pyrrol-1-yl)-3-methylbutanoic acid CAS 148991-43-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 148991-43-9 |
| Molecular Formula | C9H11NO4 |
| Molecular Weight | 197.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(2,5-Dioxo-2,5-dihydro-1h-pyrrol-1-yl)-3-methylbutanoic acid (CAS 148991-43-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H11NO4. Molecular weight: 197.19 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H11NO4 |
| Molecular Weight | 197.19 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.) | 1999 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- (E)-3-(3-(3,5-bis(trifluoromethyl)phenyl)-1H-1,2,4-triazol-1-yl)-2-bromoacrylic acid (CAS 1642300-94-4)
- n-((3-Methylpyridin-2-yl)methyl)methanesulfonamide (CAS 1343708-44-0)
- 5-Bromo-1-(2-oxopropyl)pyridin-2(1h)-one (CAS 1247092-62-1)
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- 2-[(4-Methoxyphenoxy)methyl]piperidine 2105AE 383128-92-5 C13H19NO2 (CAS 383128-92-5)
- 3-(Pyrrolidin-1-yl)-2-(trifluoromethyl)pyridine (CAS 1713160-37-2)
- Semaglutide impurity 86 (CAS CATO-C4X-222686)
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