6,7-Dimethoxy-3-(4-methoxybenzyl)-2-((oxiran-2-ylmethyl)thio)quinazolin-4(3H)-imine CAS 477848-76-3
| CAS No. | 477848-76-3 |
| Molecular Formula | C21H23N3O4S |
| Molecular Weight | 413.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 6,7-Dimethoxy-3-(4-methoxybenzyl)-2-((oxiran-2-ylmethyl)thio)quinazolin-4(3H)-imine 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.
6,7-Dimethoxy-3-(4-methoxybenzyl)-2-((oxiran-2-ylmethyl)thio)quinazolin-4(3H)-imine (CAS 477848-76-3), molecular formula C21H23N3O4S and molecular weight 413.49 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H23N3O4S, 6,7-Dimethoxy-3-(4-methoxybenzyl)-2-((oxiran-2-ylmethyl)thio)quinazolin-4(3H)-imine contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 413.49 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C21H23N3O4S |
| Molecular Weight | 413.49 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Dimethoxy Standards
- 6,7-Dimethoxy-3-(3-methoxypropyl)-2-(phenethylthio)quinazolin-4(3H)-imine (CAS 477848-77-4)
- 6,7-Dimethoxy-3-(4-methoxy-6-methyl-5,6,7,8-tetrahydro-[1,3]dioxolo[4,5-g]isoquinolin-5-yl)-3h-isobenzofuran-1-one (CAS 10421-76-8)
- 2-(3,4-Dimethoxy-phenyl)-5-[[2-(3,4-dimethoxyphenyl)-ethyl]methyl-amino]-pentanenitrile (CAS 95748-23-5)
- 4,4''-Dimethoxy-5'-(4-methoxyphenyl)-1,1':3',1''-terphenyl (CAS 7509-20-8)
- Ethyl 8,9-dimethoxy-2-methyl-1-(morpholinomethyl)-5,6-dihydropyrrolo[2,1-a]isoquinoline-3-carboxylate (CAS 20353-60-0)
- (6,7-Dimethoxy-1-phenyl-1,2,3,4-tetrahydroisoquinoline-2-carbonyl)-L-valine (CAS 957023-82-4)
- 6,8-Dimethoxy-4-methyl-1-(4-phenoxyphenyl)-2,3-dihydro-1H-pyrrolo[3,2-c]quinoline (CAS 860784-79-8)
- 6,7-Dimethoxy-2-methyl-1-(2,3,4-trichlorophenethyl)-1,2,3,4-tetrahydroisoquinoline (CAS 63937-61-1)
Recommended Standards
- 6-(Cyclohexylmethoxy)-N-(4-(vinylsulfonyl)phenyl)-9H-purin-2-amine (CAS 2070015-09-5)
- Ethyl 2-(2-(3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)acetamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 380872-69-5)
- 4-(((4-(4-Ethoxyphenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)methyl)benzonitrile (CAS 571942-55-7)
- N-(2-(1H-indol-3-yl)ethyl)-3-amino-6-(pyridin-3-yl)thieno[2,3-b]pyridine-2-carboxamide (CAS 899374-98-2)
- 3-Ethyl-5-(2-hydroxy-3-methoxybenzylidene)-2-thioxothiazolidin-4-one (CAS 273731-75-2)
- Z-NHNH2 (free base) (CAS 5331-43-1)
- Diflunisal (CAS 22494-42-4)
- 3-(4-Fluorophenyl)-5-(o-tolylamino)thiazolidine-2,4-dione (CAS 1025499-75-5)
- 7-Amino-2,3-dihydro-4-benzofurancarboxylic acid (CAS 1280666-71-8)
- 3-ethyl-3-ethynyloxetane (CAS 1416323-31-3)
- 5-Bromo-4-nitro-2-(trifluoromethyl)pyridine (CAS 1805567-78-5)
- Neostigmine impurity 40 (CAS CATO-C4X-204240)
- tert-Butyl Cyclopropanecarboxylate (CAS 87661-20-9)
- Semaglutide impurity 29 (CAS 1188328-22-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com