2-(4-Carboxyphenyl)-1,3-dioxoisoindoline-5-carboxylic acid CAS 7702-03-6
| CAS No. | 7702-03-6 |
| Molecular Formula | C16H9NO6 |
| Molecular Weight | 311.25 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 2-(4-Carboxyphenyl)-1,3-dioxoisoindoline-5-carboxylic acid (CAS 7702-03-6), a certified reference material (molecular formula C16H9NO6, MW 311.25 g/mol) for analytical method development and quality control.
Based on its molecular formula C16H9NO6, 2-(4-Carboxyphenyl)-1,3-dioxoisoindoline-5-carboxylic acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 311.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C16H9NO6 |
| Molecular Weight | 311.25 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 1 |
Related Carboxyphenyl Standards
- 2-(3-Carboxyphenyl)-1,3-dioxoisoindoline-5-carboxylic acid (CAS 38250-60-1)
- 5-((4-Carboxyphenyl)ethynyl)isophthalicacid (CAS 1311146-60-7)
- 3-(3-Carboxyphenyl)-5-(trifluoromethyl)benzoic acid (CAS 1261930-96-4)
- 2-(4-Carboxyphenyl)-4-oxo-1,4-dihydroquinoline-6-carboxylic acid (CAS 90034-52-9)
- 3-(2-Carboxyphenyl)-1-phenyl-1h-pyrazole-4-carboxylic acid (CAS 6110-61-8)
- 4-(2-Carboxyphenyl)piperazine-1-carboxylic acid tert-butyl ester (CAS 444582-90-5)
- 2-(3-Carboxyphenyl)-1-piperidinecarboxylic Acid 1-(1,1-Dimethylethyl) Ester (CAS 908334-24-7)
- 2,5-Bis(4-carboxyphenyl)pyridine (CAS 1800425-09-5)
Recommended Standards
- 2-(5-(2-Nitrophenyl)-1,3,4-oxadiazol-2-yl)benzoic acid (CAS 56894-42-9)
- 1H-Isochromene-1,3,4-trione 4-[N-(3-nitrophenyl)hydrazone] (CAS 303985-86-6)
- 2-(5-(3-Nitrophenyl)-1,3,4-oxadiazol-2-yl)benzoic acid (CAS 56894-38-3)
- 4-Methyl-5-trifluoromethyl-2-(4-trifluoromethyl-phenyl)-thiazole (CAS 1965304-63-5)
- Bendamustine Impurity 10 (CAS 1221157-18-1)
- methyl 3-tert-butyl-1,2,4-oxadiazole-5-carboxylate (CAS 1899834-30-0)
- [(1,3-Benzothiazol-2-ylmethyl)thio]acetic acid (CAS 99184-85-7)
- 4-(3-Chlorophenyl)thiazole-2-carbaldehyde (CAS 383142-59-4)
- (S)-1-Boc-2-cyclopropylpiperazine (CAS 1240586-17-7)
- 2-Isopropoxybenzaldehyde 2-(propan-2-yloxy)benzaldehyde 2-isopropoxy-benzaldehyde 2-iso-propoxybenzaldehyde 22921-58-0 (CAS 22921-58-0)
- 1H,3H,3aH,4H,9H,9aH-2$l^{6},4,9-thieno[3,4-b]quinoxaline-2,2-dione (CAS 56714-11-5)
- 1-(Triphenylphosphoranylidene)butan-2-one (CAS 19753-66-3)
- 5-Bromo-2-(pyridin-2-ylmethoxy)pyrimidine (CAS 1824025-80-0)
- Liraglutide(3-31)TFA Salt (CAS CATO-C4X-19921)
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