2-(3-Acetyl-4-hydroxy-5-oxo-2-(p-tolyl)-2,5-dihydro-1H-pyrrol-1-yl)acetic acid CAS 332022-22-7
| CAS No. | 332022-22-7 |
| Molecular Formula | C15H15NO5 |
| Molecular Weight | 289.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(3-Acetyl-4-hydroxy-5-oxo-2-(p-tolyl)-2,5-dihydro-1H-pyrrol-1-yl)acetic acid (CAS 332022-22-7), molecular formula C15H15NO5 and molecular weight 289.28 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, 2-(3-Acetyl-4-hydroxy-5-oxo-2-(p-tolyl)-2,5-dihydro-1H-pyrrol-1-yl)acetic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 289.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-(3-Acetyl-4-hydroxy-5-oxo-2-(p-tolyl)-2,5-dihydro-1H-pyrrol-1-yl)acetic acid 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 | C15H15NO5 |
| Molecular Weight | 289.28 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, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 2-(3,4,5-TRIMETHOXYPHENYL)PYRIDINE-4-CARBOXYLIC ACID (CAS 427886-03-1)
- 2-(3-Fluorobenzylidene)-6-methyl-2H-thiazolo[3,2-b][1,2,4]triazine-3,7-dione (CAS 606955-98-0)
- 2-(2-Formyl-4-methoxyphenoxy)-N-(furan-2-ylmethyl)acetamide (CAS 923729-30-0)
- 2-(4-(2-Oxo-5-((prop-2-yn-1-yloxy)methyl)oxazolidin-3-yl)phenyl)acetic acid (CAS 43148-98-7)
- N-(4-Chloro-3-(trifluoromethoxy)phenyl)acetamide (CAS 7574-46-1)
- Fmoc-Thr(GlcNAc(Ac)3-β-D)-OH (CAS 160168-40-1)
- (2R,3S,4R,5R)-2-(acetoxymethyl)-5-azido-6-(2,2,2-trichloro-1-iminoethoxy)tetrahydro-2H-pyran-3,4-diyl diacetate (CAS 145840-43-3)
- 2-(3-Butoxyphenyl)-4-methylpyrrolidine (CAS 603089-76-5)
- 2-Chloro-1-{6-chloroimidazo[1,2-a]pyridin-3-yl}-2,2-difluoroethan-1-one; 2-chloro-2,2-difluoroacetic acid (CAS 1078634-12-4)
- N,N-Dimethyl-N'-(4-methylbenzyl)-1,2-ethanediamine dihydrochloride (CAS 1158367-04-4)
- 6-Bromo-4-oxo-3,4-dihydro-2H-benzo[e][1,3]oxazine-2-carboxylic acid (CAS 30482-74-7)
- 3-Bromo-n-(cyclohexylmethyl)benzenesulfonamide (CAS 852228-52-5)
- 6-(2,2-Difluoropropoxy)nicotinic acid (CAS 1373864-51-7)
- Biotinyl-Glucagon (1-29) (human, rat, porcine) trifluoroacetate salt (CAS 1802086-28-7)
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