7-Methoxyquinazolin-4-amine CAS 21560-97-4
| CAS No. | 21560-97-4 |
| Molecular Formula | C9H9N3O |
| Molecular Weight | 175.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 7-Methoxyquinazolin-4-amine (CAS 21560-97-4), a certified reference material (molecular formula C9H9N3O, MW 175.19 g/mol) for analytical method development and quality control.
Structurally, 7-Methoxyquinazolin-4-amine (C9H9N3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 175.19 g/mol, it falls into the medium-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.
As a certified reference material (CRM), 7-Methoxyquinazolin-4-amine 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 | C9H9N3O |
| Molecular Weight | 175.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 3 |
Related Methoxyquinazolin Standards
- 4-Methoxyquinazolin-6-amine (CAS 1341366-12-8)
- 4-Methoxyquinazolin-7-amine (CAS 1556373-89-7)
- 4-Methoxyquinazolin-8-amine (CAS 653577-05-0)
- 5-Methoxyquinazolin-4-amine (CAS 885277-54-3)
- 6-Methoxyquinazolin-5-amine (CAS 87039-49-4)
- 6-Methoxyquinazolin-7-amine (CAS 919769-93-0)
- 6-Methoxyquinazolin-8-amine (CAS 413608-31-8)
- 7-Methoxyquinazolin-2-amine (CAS 709-02-4)
Recommended Standards
- 7-Methoxyquinoxalin-5-amine (CAS 7403-14-7)
- 7-Methoxy-1,8-naphthyridin-2-amine (CAS 53788-35-5)
- 7-Methyl-1,8,10,11,12-pentaazatricyclo[7.3.0.0^{2,6}]dodeca-2(6),7,9,11-tetraene (CAS 860651-02-1)
- 7-cyclopropyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-amine (CAS 885949-41-7)
- n1-Cyclopropyl-6-methylbenzene-1,2-diamine (CAS 1353945-54-6)
- 2-(1-(4-Aminophenyl)ethylidene)-N-(p-tolyl)hydrazine-1-carbothioamide (CAS 316130-15-1)
- 2-Methyl-2-(methylamino)-4-(1h-1,2,4-triazol-1-yl)pentanamide (CAS 1342354-68-0)
- 3-Fluoro-4-(2-methoxy-4-methylphenoxy)aniline (CAS 937598-05-5)
- 4-Bromo-6,8-dichloro-2-phenylquinoline (CAS 1189106-07-7)
- (R)-2-amino-2-(3-chloro-2-methylphenyl)ethan-1-ol (CAS 1213371-57-3)
- 1-(2-(Pyridin-3-yl)pyrimidin-4-yl)-3-(p-tolyl)urea (CAS 478046-67-2)
- 2-Phenyl-N-[4-(trifluoromethyl)phenyl]-1,3-thiazole-4-carboxamide (CAS 303998-24-5)
- 7-Chloro-2,3-dihydro-1,8-naphthyridin-4(1H)-one (CAS 76629-10-2)
- Fibrinogen-Binding Peptide (CAS 137235-80-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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