3-(3,4-Dimethoxyphenyl)-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid CAS 687583-99-9
| CAS No. | 687583-99-9 |
| Molecular Formula | C17H14N2O6 |
| Molecular Weight | 342.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-(3,4-Dimethoxyphenyl)-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid.
3-(3,4-Dimethoxyphenyl)-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid (CAS 687583-99-9) is a high-purity analytical reference standard with the molecular formula C17H14N2O6 and a molecular weight of 342.30 g/mol.
3-(3,4-Dimethoxyphenyl)-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid (C17H14N2O6) 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. 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.
As a certified reference material (CRM), 3-(3,4-Dimethoxyphenyl)-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic 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 | C17H14N2O6 |
| Molecular Weight | 342.30 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 2 |
Related Dimethoxyphenyl Standards
- 3-(3,5-Dimethoxyphenyl)-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid (CAS 687584-00-5)
- 5-(2,6-dimethoxyphenyl)-1-(4-fluorophenyl)-1H-pyrazole-3-carboxylic acid (CAS 1612148-85-2)
- 2-(2,6-Dimethoxyphenyl)-5,6-dimethoxy-4H-chromen-4-one (CAS 14813-19-5)
- 6-(2-(3,4-Dimethoxyphenyl)thiazol-4-yl)picolinic acid (CAS 1027030-15-4)
- N-(2,4-Dimethoxyphenyl)-2-phenylmorpholine-4-carboxamide (CAS 1210486-07-9)
- 1-(3,4-Dimethoxyphenyl)-4(3,4-methylenedioxyphenyl)-2,3-dimethylbutane (CAS 129684-08-8)
- {[(3,4-dimethoxyphenyl)methyl]sulfamoyl}[(thiophen-2-yl)methyl]amine (CAS 337924-50-2)
- 2-(3,4-Dimethoxyphenyl)-6-methylquinoline-4-carbonyl chloride (CAS 1160253-77-9)
Recommended Standards
- 3-(3-(4-Nitrophenoxy)-2-oxopyrrolidin-1-yl)benzoic acid (CAS 649774-24-3)
- 2-O-α-D-Glucopyranosyl-D-galactopyranose (CAS 7368-73-2)
- 3-O- β-D-Galactopyranosyl-D-galactose (CAS 5188-48-7)
- 2-Nitrophenyl 2-acetamido-2-deoxy-α-D-galactopyranoside (CAS 23646-67-5)
- 2,4-Dichloro-6-((trimethylsilyl)ethynyl)-1,3,5-triazine (CAS 38180-90-4)
- tert-Butyl 2-formyl-4-methoxypyrrolidine-1-carboxylate (CAS 1803584-88-4)
- n-(2-Fluorophenyl)-1-methylpiperidin-4-amine (CAS 51233-90-0)
- (E)-2-(Trifluoromethyl)-N'-(3-(trifluoromethyl)benzylidene)benzenesulfonohydrazide (CAS 2301998-89-8)
- 4-(2-Methylpropyl)benzene-1-sulfonyl chloride (CAS 339370-45-5)
- 2-(4-Chlorophenyl)-4-(trifluoromethyl)thiazole-5-carboxylic acid (CAS 187998-87-4)
- 4-Chloro-3-methylbutanoyl Chloride (CAS 63480-13-7)
- N-[(4-Chlorophenyl)methyl]-2,7-dimethyl-5-oxo-5H-chromeno[2,3-b]pyridine-3-carboxamide (CAS 338751-40-9)
- Ethyl 5-amino-1-(pyridin-4-yl)-1H-pyrazole-4-carboxylate (CAS 38965-48-9)
- Acetyl tetrapeptide-3 (CAS 827306-88-7)
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