6,7-Dimethoxy-2-{[(3-methoxyphenyl)methyl]sulfanyl}-3-(3-methoxypropyl)-3,4-dihydroquinazolin-4-imine CAS 439096-41-0
| CAS No. | 439096-41-0 |
| Molecular Formula | C22H27N3O4S |
| Molecular Weight | 429.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6,7-Dimethoxy-2-{[(3-methoxyphenyl)methyl]sulfanyl}-3-(3-methoxypropyl)-3,4-dihydroquinazolin-4-imine (CAS 439096-41-0), molecular formula C22H27N3O4S and molecular weight 429.53 g/mol, is a CATO reference standard with documented purity and traceability.
6,7-Dimethoxy-2-{[(3-methoxyphenyl)methyl]sulfanyl}-3-(3-methoxypropyl)-3,4-dihydroquinazolin-4-imine (C22H27N3O4S) contains a flavonoid core, an amide group, a sulfone 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. 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.
CATO manufactures 6,7-Dimethoxy-2-{[(3-methoxyphenyl)methyl]sulfanyl}-3-(3-methoxypropyl)-3,4-dihydroquinazolin-4-imine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C22H27N3O4S |
| Molecular Weight | 429.53 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) | 11.0 |
| 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-2-{[(4-methoxyphenyl)methyl]sulfanyl}-3-(3-methoxypropyl)-3,4-dihydroquinazolin-4-imine (CAS 439096-35-2)
- 1189941-02-3 3,3'-(2,2'-Dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis[3-(trifluoromethyl)-3H-diazirene] DTXSID40652481 (CAS 1189941-02-3)
- 4,4'-((2,5-Dimethoxy-1,4-phenylene)bis(ethene-2,1-diyl))dibenzoic acid (CAS 67546-17-2)
- 4,5-Dimethoxy-2-(1-(2-methoxy-5-methylphenyl)-5-oxopyrrolidine-3-carboxamido)benzoic acid (CAS 1900999-60-1)
- 18,19-Dimethoxy-7-(thiophen-3-yl)-4,5,9,13-tetraazapentacyclo[11.8.0.0^{3,11}.0^{4,8}.0^{16,21}]henicosa-3(11),5,7,9,16(21),17,19-heptaen-12-one (CAS 685107-13-5)
- 6,7-Dimethoxy-3-phenethyl-2-((pyridin-4-ylmethyl)thio)quinazolin-4(3H)-imine (CAS 691858-07-8)
- 4,4'-((2,5-Dimethoxy-1,4-phenylene)bis(ethyne-2,1-diyl))dibenzoic acid (CAS 1190438-53-9)
- 4,4'-((2,5-Dimethoxy-1,4-phenylene)bis(ethyne-2,1-diyl))bis(2-hydroxybenzaldehyde) (CAS 791068-98-9)
Recommended Standards
- 4-[(Z)-[(Naphthalen-1-yl)methylidene]amino]phenyl 2,4,6-trimethylbenzene-1-sulfonate (CAS 329777-86-8)
- 4-(4-(Benzyloxy)phenyl)-6-methyl-N-phenyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide (CAS 341965-97-7)
- N-((2-(2,3-Dimethylphenyl)benzo[d]oxazol-5-yl)carbamothioyl)-3,4-dimethylbenzamide (CAS 590396-69-3)
- 2-(3-Methoxy-4-(octyloxy)benzylidene)-6-methyl-2H-thiazolo[3,2-b][1,2,4]triazine-3,7-dione (CAS 617694-34-5)
- N4-(Pyridin-3-ylmethyl)pyrimidine-4,5-diamine (CAS 1510980-48-9)
- 7-(Aminomethyl)benzoxazole Hydrochloride (CAS 2006276-90-8)
- 1-Benzyl-1-(mesitylmethyl)hydrazine (CAS 143425-79-0)
- 1-(2-(Methylselanyl)phenyl)ethanone (CAS 1441-98-1)
- Clopidogrel Impurity 17 (CAS 1267217-46-8)
- 3-(4-chlorophenyl)-8-azabicyclo[3.2.1]octan-3-ol hydrochloride (CAS 1795278-26-0)
- 1-((4-Chlorophenyl)thio)propan-2-amine (CAS 53662-09-2)
- (4-Ethylphenyl)methanesulfonamide (CAS 64732-35-0)
- 3-Chloroisoquinolin-8-boronic acid (CAS 2096333-80-9)
- Liraglutide Impurity 14 TFA Salt (CAS CATO-C4X-199214)
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