2-Methoxy-5-((6-methoxy-7-(2-methoxyethoxy)quinazolin-4-yl)amino)cyclohexa-2,5-diene-1,4-dione CAS 870959-98-1
| CAS No. | 870959-98-1 |
| Molecular Formula | C19H19N3O6 |
| Molecular Weight | 385.37 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-Methoxy-5-((6-methoxy-7-(2-methoxyethoxy)quinazolin-4-yl)amino)cyclohexa-2,5-diene-1,4-dione (CAS 870959-98-1), a certified reference material (molecular formula C19H19N3O6, MW 385.37 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, 2-Methoxy-5-((6-methoxy-7-(2-methoxyethoxy)quinazolin-4-yl)amino)cyclohexa-2,5-diene-1,4-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 385.37 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C19H19N3O6 |
| Molecular Weight | 385.37 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.) | 1987 |
| Nitrogen Atoms | 3 |
Related Methoxy Standards
- 2-Methoxy-N-(2-(3-oxo-3,4-dihydroquinoxalin-2-yl)phenyl)-2-phenylacetamide (CAS 900013-26-5)
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- 9-Methoxy-3,5,5-trimethyl-2-((2,2,2-trifluoroethyl)thio)-5,6-dihydrobenzo[h]quinazolin-4(3H)-one (CAS 1482457-84-0)
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Recommended Standards
- 2-Amino-9-((2R,4aR,7R,8S,8aS)-8-hydroxy-2-phenylhexahydropyrano[3,2-d][1,3]dioxin-7-yl)-3,9-dihydro-6H-purin-6-one (CAS 705967-83-5)
- 3-(4-Fluorophenyl)-5-(2-(3-fluorophenyl)pyrimidin-4-yl)benzo[c]isoxazole (CAS 400081-27-8)
- 1-(9-((2R,4S,5R)-4-Hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-6-oxo-6,9-dihydro-1H-purin-2-yl)-3-(p-tolyl)urea (CAS 922713-80-2)
- 4-(2-(Furan-2-yl)-6-(4-nitrophenyl)pyridin-4-yl)benzamide (CAS 581073-80-5)
- 5,6,7,8-Tetrahydroquinoxalin-2-amine (CAS 155535-21-0)
- N-(4-Bromo-2-(3-chlorobenzoyl)phenyl)acetamide (CAS 406161-72-6)
- 2,6-Dichloro-3-methylcinnamic acid (CAS 1807439-68-4)
- Fmoc-3-bromo-L-homophenylalanine (CAS 1260590-73-5)
- 6-Chloro-2-(furan-2-yl)pyrimidin-4-amine (CAS 856173-22-3)
- Phthalate Mix 7 (CAS CATO-MCHM703499)
- 2-Bromo-4-(trifluoromethyl)-1-vinylbenzene (CAS 402-09-5)
- Amylmetacresol EP Impurity E (CAS 3488-90-2)
- 5-Amino-2-(3-methylbutanoyl)isoxazol-3(2H)-one (CAS 1573547-55-3)
- 3X Flag Peptide trifluoroacetate salt (CAS 402750-12-3)
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