1-Benzoyl-4-hydroxy-1H-pyrrol-2(5H)-one CAS 68661-20-1
| CAS No. | 68661-20-1 |
| Molecular Formula | C11H9NO3 |
| Molecular Weight | 203.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 1-Benzoyl-4-hydroxy-1H-pyrrol-2(5H)-one (C11H9NO3) is characterized by an amino-acid-derived structure, 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 supplies 1-Benzoyl-4-hydroxy-1H-pyrrol-2(5H)-one (CAS 68661-20-1), a certified reference material (molecular formula C11H9NO3, MW 203.19 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C11H9NO3 |
| Molecular Weight | 203.19 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 1 |
Related Benzoyl Standards
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Recommended Standards
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- (4-(Isopropylcarbamoyl)phenyl)boronic acid (CAS 397843-67-3)
- 2-Bromo-5-(trifluoromethyl)benzenethiol (CAS 60877-19-2)
- 8-Hydroxy-PIPAT Oxalate (CAS 1451210-48-2)
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- N-(3,3-Dimethylindolin-6-yl)-2-((pyridin-4-ylmethyl)amino)nicotinamide diphosphate (CAS 857876-30-3)
- Liraglutide Impurity 30 (CAS CATO-C4X-199230)
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