1,3-Dioxo-2-phenyl-2,3-dihydro-1H-isoindole-5-carboxylic acid CAS 4649-27-8
| CAS No. | 4649-27-8 |
| Molecular Formula | C15H9NO4 |
| Molecular Weight | 267.24 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.
1,3-Dioxo-2-phenyl-2,3-dihydro-1H-isoindole-5-carboxylic acid (CAS 4649-27-8) is a high-purity analytical reference standard with the molecular formula C15H9NO4 and a molecular weight of 267.24 g/mol.
The molecular framework of 1,3-Dioxo-2-phenyl-2,3-dihydro-1H-isoindole-5-carboxylic acid (C15H9NO4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C15H9NO4 |
| Molecular Weight | 267.24 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 1-Methyl-4-nitroanthracene-9,10-dione (CAS 42431-35-6)
- 2,3-Dimethylindole-5-carbaldehyde (CAS 66258-21-7)
- 2,7-Dipropyl-1,4-dihydropyrimido[4,5-d]pyrimidine (CAS 720-68-3)
- 4-((2-Chlorophenyl)thio)-2-phenylpyrimidine-5-carboxylic acid (CAS 400076-29-1)
- ((3S,4S,5R)-2,3,4-trihydroxytetrahydrofuran-2,5-diyl)bis(methylene) bis(dihydrogen phosphate) (CAS 717817-28-2)
- 2-Amino-3-(aminomethyl)-5-(difluoromethyl)pyridin-4-ol (CAS 1806791-94-5)
- 5-chloroindane-1-carbonitrile (CAS 132205-76-6)
- Fmoc-L-alaninol (CAS 161529-13-1)
- (3-Methyl-1,2-oxazol-4-yl)methanamine hydrochloride (CAS 1373029-26-5)
- tert-Butyl 4-cyanoindoline-1-carboxylate (CAS 959236-05-6)
- Heme iron polypeptide(Hematin) (CAS 14875-96-8)
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