4-Hydroxyquinazoline-7-carboxamide CAS 954803-07-7
| CAS No. | 954803-07-7 |
| Molecular Formula | C9H7N3O2 |
| Molecular Weight | 189.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 189.17 g/mol gives 4-Hydroxyquinazoline-7-carboxamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-Hydroxyquinazoline-7-carboxamide (CAS 954803-07-7), a certified reference material (molecular formula C9H7N3O2, MW 189.17 g/mol) for analytical method development and quality control.
4-Hydroxyquinazoline-7-carboxamide (C9H7N3O2) contains an amino-acid-derived structure, 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 | C9H7N3O2 |
| Molecular Weight | 189.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related Hydroxyquinazoline Standards
- 2-Hydroxyquinazoline-4-carboxylic acid (CAS 99066-77-0)
- 4-hydroxyquinazoline-2-carbaldehyde (CAS 104968-03-8)
- 4-hydroxyquinazoline-6-carbaldehyde (CAS 1121529-15-4)
- 6-Hydroxyquinazoline-2,4(1H,3H)-dione (CAS 17730-74-4)
- 7-Hydroxyquinazoline-2,4(1H,3H)-dione (CAS 861546-03-4)
- 6-Hydroxyquinazoline-4-carbonitrile (CAS 1823902-39-1)
- 4-Hydroxyquinazoline-8-carbonitrile (CAS 663194-04-5)
- Ethyl 2-hydroxyquinazoline-4-carboxylate (CAS 1141669-83-1)
Recommended Standards
- 4-Hydroxyisoquinoline-7-carboxylic acid (CAS 2506275-15-4)
- 4-Hydroxyquinoline-8-carboxylic Acid (CAS 386207-63-2)
- 4-Hydroxyisoquinoline-3-carboxylic Acid (CAS 22080-18-8)
- 4-Isonicotinoyl-1H-imidazol-2(3H)-one (CAS 88166-66-9)
- Ethyl 6,8-dichloroimidazo[1,2-b]pyridazine-3-carboxylate (CAS 1177415-90-5)
- 8-((4-Methoxy-2-methylphenyl)sulfonyl)-1-oxa-4-thia-8-azaspiro[4.5]decane (CAS 1351661-04-5)
- 4-Chlorobenzo[f]isoquinoline (CAS 32081-28-0)
- 3-Ethyl-5-fluoro-1H-indole-2-carboxylic acid (CAS 169674-67-3)
- 2-(Cyanomethyl)-3-(difluoromethyl)-6-(trifluoromethyl)isonicotinonitrile (CAS 1805286-18-3)
- Ethyl 4-(tert-butyl)-3,5-dimethyl-1H-pyrrole-2-carboxylate (CAS 28991-95-9)
- 2-(3,3-Difluoropiperidin-1-yl)-6-nitrobenzaldehyde (CAS 1779119-41-3)
- 2-(Aminomethyl)cyclohexan-1-amine (CAS 40015-92-7)
- 3-Isobutylisoxazole-5-carbaldehyde (CAS 121604-55-5)
- D-Trp25-Tirzepatide (CAS CATO-CPTD788909)
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