3-(1,3-Dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)benzoic acid CAS 202805-08-1
| CAS No. | 202805-08-1 |
| Molecular Formula | C19H11NO4 |
| Molecular Weight | 317.29 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.
CATO supplies 3-(1,3-Dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)benzoic acid (CAS 202805-08-1), a certified reference material (molecular formula C19H11NO4, MW 317.29 g/mol) for analytical method development and quality control.
Structurally, 3-(1,3-Dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)benzoic acid (C19H11NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 317.29 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C19H11NO4 |
| Molecular Weight | 317.29 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2014 |
| Nitrogen Atoms | 1 |
Related Dioxo Standards
- 4-(1,3-Dioxo-1H-benz[de]isoquinolin-2(3H)-yl)benzoic acid (CAS 135980-47-1)
- 2-(1,3-Dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)benzoic acid (CAS 56813-55-9)
- 2-[[2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindolin-4-yl]amino]acetic acid (CAS 2103656-92-2)
- 1-[(6-Methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)sulfonyl]piperidine-4-carboxylic acid (CAS 697257-17-3)
- Benzyl 2,4-dioxo-3,4,5,6,8,9-hexahydro-1H-pyrimido[4,5-d]azepine-7(2H)-carboxylate (CAS 1207369-43-4)
- (8-Benzyl-2,4-dioxo-1,3,8-triaza-spiro[4.5]dec-3-yl)-acetic acid (CAS 732926-20-4)
- 2-(2,6-dioxo-3-piperidyl)-4-(prop-2-ynylamino)isoindoline-1,3-dione (CAS 2154342-25-1)
- 1-Butyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-6-sulfonyl chloride (CAS 1334147-33-9)
Recommended Standards
- 2,2,2-Trifluoro-N-(2-(6-oxo-3-(thiophen-2-yl)pyridazin-1(6H)-yl)ethyl)acetamide (CAS 946239-27-6)
- 3-(2,4-Difluorophenyl)-3-(1-oxoisoindolin-2-yl)propanoic acid (CAS 860784-48-1)
- 2-(Naphthalen-1-yl)-1,3-dioxoisoindoline-5-carboxylic acid (CAS 202828-12-4)
- 4-((4-Oxo-4H-chromen-3-yl)methylene)-2-phenyloxazol-5(4H)-one (CAS 62484-59-7)
- 2-((4-Chlorophenyl)amino)-4,9-dioxo-4,9-dihydronaphtho[2,3-b]thiophene-3-carboxylic acid (CAS 1258637-95-4)
- 2-Cyclobutoxypyridine-4-carboxylic acid (CAS 1247662-13-0)
- 1-(Piperidin-4-yl)-3-(pyridin-3-yl)urea (CAS 1516297-51-0)
- 2,5-Dimethylhex-3-ene-2,5-diol (CAS 927-81-1)
- 2-Bromo-3-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1264130-85-9)
- (E)-[2-(2-Nitrophenoxy)-1-phenylethylidene]amino N-(3-chlorophenyl)carbamate (CAS 338747-45-8)
- 2,2-Dimethylpent-4-yn-1-ol (CAS 107540-03-4)
- Methyl 1-((6-chloropyrazin-2-yl)oxy)cyclopropane-1-carboxylate (CAS 1346172-80-2)
- Brexpiprazole Impurity 66 (CAS CATO-C4X-113166)
- Insulin Degludec Impurity 10 (CAS CATO-C4X-215710)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com