5-(2-Chlorobenzyl)-7-(3,4-dimethoxyphenyl)-2-methylthiazolo[4,5-d]pyridazin-4(5H)-one CAS 941949-93-5
| CAS No. | 941949-93-5 |
| Molecular Formula | C21H18ClN3O3S |
| Molecular Weight | 427.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-(2-Chlorobenzyl)-7-(3,4-dimethoxyphenyl)-2-methylthiazolo[4,5-d]pyridazin-4(5H)-one is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-(2-Chlorobenzyl)-7-(3,4-dimethoxyphenyl)-2-methylthiazolo[4,5-d]pyridazin-4(5H)-one (CAS 941949-93-5) is a high-purity analytical reference standard with the molecular formula C21H18ClN3O3S and a molecular weight of 427.90 g/mol.
5-(2-Chlorobenzyl)-7-(3,4-dimethoxyphenyl)-2-methylthiazolo[4,5-d]pyridazin-4(5H)-one (C21H18ClN3O3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-(2-Chlorobenzyl)-7-(3,4-dimethoxyphenyl)-2-methylthiazolo[4,5-d]pyridazin-4(5H)-one 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 | C21H18ClN3O3S |
| Molecular Weight | 427.90 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Chlorobenzyl Standards
- 3-((4-Chlorobenzyl)thio)-4-ethyl-5-((3-(trifluoromethyl)phenoxy)methyl)-4H-1,2,4-triazole (CAS 383146-70-1)
- 2-(4-Chlorobenzyl)-N-(3-(trifluoromethyl)benzyl)quinazolin-4-amine (CAS 303149-92-0)
- 5-(4-((2-Chlorobenzyl)oxy)-3-iodophenyl)-1,3,4-oxadiazol-2-amine (CAS 1706445-19-3)
- 5-(4-((4-Chlorobenzyl)oxy)-3-iodophenyl)-1,3,4-oxadiazol-2-amine (CAS 1706445-23-9)
- 1,3-Bis(4-chlorobenzyl)-2-(4-methoxyphenyl)imidazolidine (CAS 5428-35-3)
- 2-((5-((4-Chlorobenzyl)thio)-1,3,4-thiadiazol-2-yl)thio)-N-(2-cyano-3-methylbutan-2-yl)acetamide (CAS 790288-44-7)
- 1-(4-Chlorobenzyl)-4-(2,4-difluorobenzoyl)-3-methyl-3,4-dihydroquinoxalin-2(1H)-one (CAS 317822-43-8)
- 3-((2-Chlorobenzyl)thio)-5-(4-chlorophenyl)-4-(p-tolyl)-4H-1,2,4-triazole (CAS 443738-33-8)
Recommended Standards
- 2-Amino-1-(3-((4-chlorophenyl)amino)-2-(4-fluorophenyl)-8,8-dimethyl-5,6-dihydroimidazo[1,2-a]pyrazin-7(8H)-yl)ethanone (CAS 1261114-01-5)
- Ethyl 2-(4-(3-chlorophenyl)piperazin-1-yl)-5-(4-fluorophenyl)-1H-pyrrole-3-carboxylate (CAS 338406-24-9)
- 3-(4-Chlorophenyl)-5-(methylsulfanyl)-N-[4-(trifluoromethyl)phenyl]thiophene-2-carboxamide (CAS 477858-03-0)
- Ethyl 5-acetyl-2-(2-chlorobenzamido)-4-phenylthiophene-3-carboxylate (CAS 333774-40-6)
- N-(4-Methylbenzyl)prop-2-yn-1-amine (CAS 892594-94-4)
- Methyl 11-trans-Eicosenoate (CAS 69119-90-0)
- 6-Fluoro-8-nitro-1,2,3,4-tetrahydroquinolin-2-one (CAS 1310558-45-2)
- 2-(2-Methyl-1H-benzoimidazol-5-yl)-ethylamine dihydrochloride (CAS 1965309-28-7)
- MEthyl 2-(morpholin-4-yl)pyridine-3-carboxylate (CAS 773134-07-9)
- 3-amino-4-ethoxy-N,N-diethylbenzenesulfonamide (CAS 736948-91-7)
- Allyltributylstannane (CAS 24850-33-7)
- [2-(Propane-2-sulfonyl)phenyl]boronic acid (CAS 2377611-12-4)
- 4-(2,2,2-Trifluoro-1-((trimethylsilyl)oxy)ethyl)morpholine (CAS 289706-46-3)
- Hexapeptide-1 (CAS CATO-CPTD788821)
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