6,7-Dimethoxyquinazoline-4-carboxylic Acid CAS 122234-85-9
| CAS No. | 122234-85-9 |
| Molecular Formula | C11H10N2O4 |
| Molecular Weight | 234.21 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.
6,7-Dimethoxyquinazoline-4-carboxylic Acid (CAS 122234-85-9), molecular formula C11H10N2O4 and molecular weight 234.21 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 6,7-Dimethoxyquinazoline-4-carboxylic Acid (C11H10N2O4) is characterized by an amino-acid-derived structure, 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 | C11H10N2O4 |
| Molecular Weight | 234.21 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, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 2 |
Related Dimethoxyquinazoline Standards
- 2,8-Dimethoxyquinazoline-6-carboxylic acid (CAS 2721375-00-2)
- 6,7-Dimethoxyquinazoline-4-thiol (CAS 118109-50-5)
- Methyl 2,4-dimethoxyquinazoline-7-carboxylate (CAS 1799412-43-3)
- 3-Ethyl-6,7-dimethoxyquinazoline-2,4(1H,3H)-dione (CAS 335417-99-7)
- 6,7-Dimethoxyquinazoline-4-carbonitrile (CAS 140934-70-9)
- 2,4-Dimethoxyquinazoline-6-carbonitrile (CAS 1823776-39-1)
- 2,4-Dimethoxyquinazoline (CAS 2050-42-2)
- 6,7-Dimethoxyquinazoline (CAS 4101-33-1)
Recommended Standards
- (R)-2-(2,5-dioxo-2,3,4,5-tetrahydro-1H-benzo[e][1,4]diazepin-3-yl)acetic acid (CAS 1217717-66-2)
- 2-(4-(Benzyloxy)-1,2,5-oxadiazol-3-yl)acetic acid (CAS 1226869-84-6)
- 2-[(3s)-2,5-dioxo-2,3,4,5-tetrahydro-1h-1,4-benzodiazepin-3-yl]acetic acid (CAS 1217715-92-8)
- 5-(4-Hydroxy-3-methoxyphenyl)-1h-pyrazole-3-carboxylic acid (CAS 1229025-28-8)
- 4-(2-Aminoethyl)benzoic Acid Hydrochloride (CAS 60531-36-4)
- (5-(Methoxycarbonyl)pyridin-2-yl)boronic acid (CAS 1174501-32-6)
- 6-Isopropyl-2-(methylamino)nicotinaldehyde (CAS 1289000-39-0)
- Crizotinib impurity 34 (CAS CATO-C4X-102534)
- Boc-N-Me-D-Tyr-OH · DCHA (CAS 178208-61-2)
- Sudan Orange G (CAS 2051-85-6)
- 7-methoxy-1-methyl-1H-1,3-benzodiazole (CAS 853791-58-9)
- 4-Amino-5-(4-bromobenzoyl)-N-methylisoxazole-3-carboxamide (CAS 830326-85-7)
- N-(4-chlorophenyl)-4-oxo-3-phenyl-3,4-dihydrophthalazine-1-carboxamide (CAS 338975-83-0)
- Semaglutide（sodium salt） (CAS CATO-C4X-222619)
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