2-{5,11-dioxo-5H,6H,6aH,11H-isoindolo[2,1-a]quinazolin-6-yl}acetic acid CAS 1630763-89-1
| CAS No. | 1630763-89-1 |
| Molecular Formula | C17H12N2O4 |
| Molecular Weight | 308.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-{5,11-dioxo-5H,6H,6aH,11H-isoindolo[2,1-a]quinazolin-6-yl}acetic acid (CAS 1630763-89-1), a certified reference material (molecular formula C17H12N2O4, MW 308.29 g/mol) for analytical method development and quality control.
2-{5,11-dioxo-5H,6H,6aH,11H-isoindolo[2,1-a]quinazolin-6-yl}acetic acid (C17H12N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C17H12N2O4 |
| Molecular Weight | 308.29 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 2 |
Related dioxo Standards
- 4-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)phenyl N-phenylcarbamate (CAS 95498-20-7)
- 142994-80-7 2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-4,5,6,7-tetrahydro-1-benzothiophene-3-carbonitrile MFCD00107459 (CAS 142994-80-7)
- 4-(3,5-Dioxo-2-phenylthiomorpholino)benzonitrile (CAS 339109-20-5)
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- 2-(3-Methyl-2,6-dioxo-8-(piperazin-1-yl)-1,2,3,6-tetrahydro-7H-purin-7-yl)acetamide (CAS 477333-71-4)
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Recommended Standards
- Phenyl (diethoxyphosphoryl)methanesulfonate (CAS 157126-38-0)
- 1,3-Diphenyl-1h-pyrazole-4,5-dicarboxylic acid (CAS 165676-63-1)
- 4-(4-(2-Hydroxybenzoyl)-1H-pyrazol-1-yl)benzoic acid (CAS 146618-31-7)
- O-((2R,3R,4R,5S,6R)-3-Acetamido-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)-L-serine (CAS 17041-36-0)
- (3-Methoxyisoquinolin-6-yl)boronic acid (CAS 1690326-09-0)
- (2-Bromo-5-cyclopropoxypyridin-4-yl)methanamine (CAS 1243368-74-2)
- Bis(trimethylsilyl) Methylphosphonate (CAS 18279-83-9)
- 2,4-Dichloro-5-(propan-2-yl)pyrimidine (CAS 514843-12-0)
- 2-Amino-2-phenyl-N-(1h-pyrazol-3-yl)acetamide dihydrochloride (CAS 1258639-27-8)
- Benzyl ((2-methylazetidin-2-yl)methyl)carbamate (CAS 2231675-35-5)
- (2R,3S,4S)-5-(((2R,3R,4R,5S)-5-((((2R,3R,4R,5S)-5-((((2R,3R,4R,5S)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)oxy)methyl)-3,4-dihydroxytetrahydrofuran-2-yl)oxy)methyl)-3,4-dihydroxytetrahydrofuran-2-yl)oxy)-2,3,4-trihydroxypentanal (CAS 190852-24-5)
- Methyl 1-benzyl-2-((1S)-1-(((benzyloxy)carbonyl)amino)-2-methylpropyl)-5-methyl-1H-imidazole-4-carboxylate (CAS 1881275-60-0)
- 4-(Phenylcarbamoyl)phenyl pivalate (CAS 692751-61-4)
- endo-Ser39-Tirzepatide (CAS CATO-CPTD788935)
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