5,8-Bis(2,4-dichlorophenyl)-3-(trifluoromethyl)pyrido[2,3-d]pyridazine CAS 439095-95-1
| CAS No. | 439095-95-1 |
| Molecular Formula | C20H8Cl4F3N3 |
| Molecular Weight | 489.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 5,8-Bis(2,4-dichlorophenyl)-3-(trifluoromethyl)pyrido[2,3-d]pyridazine (C20H8Cl4F3N3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 489.10 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies 5,8-Bis(2,4-dichlorophenyl)-3-(trifluoromethyl)pyrido[2,3-d]pyridazine (CAS 439095-95-1), a certified reference material (molecular formula C20H8Cl4F3N3, MW 489.10 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C20H8Cl4F3N3 |
| Molecular Weight | 489.10 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related Bis Standards
- 4-(2,6-Dichlorophenyl)-2-methyl-6-[(E)-2-{[4-(trifluoromethoxy)phenyl]amino}ethenyl]pyridine-3,5-dicarbonitrile (CAS 303148-23-4)
- Ethyl 5-(3,4-dichlorophenyl)-2-(4-(4-nitrophenyl)piperazin-1-yl)-1H-pyrrole-3-carboxylate (CAS 338406-41-0)
- 2-(2,4-Dichlorophenyl)-3-(4-(2,4-dichlorophenyl)thiazol-2-yl)-5-methylthiazolidin-4-one (CAS 866048-99-9)
- Ethyl 4-(4-{2-[(2,4-dichlorophenyl)methyl]-3-ethoxy-3-oxopropanoyl}-1H-1,2,3-triazol-1-yl)benzoate (CAS 478248-77-0)
- 5-(3,4-Dichlorophenyl)-4-(4-ethoxybenzoyl)-3-hydroxy-1-(5-methyl-1,3,4-thiadiazol-2-yl)-1H-pyrrol-2(5H)-one (CAS 371211-75-5)
- (2E)-1-{3-[(2,4-dichlorophenyl)methoxy]phenyl}-3-[(4-phenoxyphenyl)amino]prop-2-en-1-one (CAS 478040-03-8)
- 6-(((2,6-Dichlorophenyl)thio)methyl)-N-methyl-2-((3-(trifluoromethyl)benzyl)thio)pyrimidin-4-amine (CAS 341965-28-4)
- 2-(1-(2,5-Dichlorophenyl)-1H-pyrazole-4-carbonyl)phenyl phenylmethanesulfonate (CAS 956729-66-1)
Recommended Standards
- N-tert-Butoxycarbonyl 3,5-Diiodotyramine (CAS 788824-51-1)
- 5-(2,6-Dibromo-4-nitrophenoxy)-2-phenyl-2H-indazole (CAS 918946-25-5)
- 5-(((5-(((4-Chlorobenzyl)thio)methyl)-4-ethyl-4H-1,2,4-triazol-3-yl)thio)methyl)-4-phenyl-2,4-dihydro-3H-1,2,4-triazole-3-thione (CAS 344274-07-3)
- tert-Butyl 4-((tert-butoxycarbonyl)amino)-2,6-dichloro-5-iodonicotinate (CAS 2763158-53-6)
- (3-Methyl-1H-pyrazol-5-yl)methanol (CAS 17607-71-5)
- Benzo[c]isothiazol-4-ylmethanol (CAS 1079993-66-0)
- 4-(Benzo[1,3]dioxol-5-yloxy)-3-oxo-pentanoic acid methyl ester (CAS 1229623-65-7)
- 2-Chloro-5-fluoro-4-hydroxybenzaldehyde (CAS 1036383-27-3)
- Dolutegravir Impurity 69 (CAS CATO-C4X-162069)
- 4-Chloro-2-(2,6-dichlorophenyl)-7-fluoro-3H-imidazo[4,5-c]pyridine (CAS 1334411-84-5)
- 3-(aminomethyl)pyridin-4-amine dihydrochloride (CAS 1797785-32-0)
- 3,4-Bis(cyclopentyloxy)cyclobut-3-ene-1,2-dithione (CAS 2171494-72-5)
- 6-Chloro-2-(3-nitrophenyl)-4-phenylquinazoline (CAS 49797-14-0)
- Semaglutide impurity 78 (CAS CATO-C4X-222678)
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