4-Chloro-2-(3-chlorophenyl)-5-(4-(2-fluorobenzoyl)piperazin-1-yl)pyridazin-3(2H)-one CAS 477867-40-6
| CAS No. | 477867-40-6 |
| Molecular Formula | C21H17Cl2FN4O2 |
| Molecular Weight | 447.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-Chloro-2-(3-chlorophenyl)-5-(4-(2-fluorobenzoyl)piperazin-1-yl)pyridazin-3(2H)-one (C21H17Cl2FN4O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 447.29 g/mol, it falls into the moderately-high-molecular-weight range. 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).
CATO supplies 4-Chloro-2-(3-chlorophenyl)-5-(4-(2-fluorobenzoyl)piperazin-1-yl)pyridazin-3(2H)-one (CAS 477867-40-6), a certified reference material (molecular formula C21H17Cl2FN4O2, MW 447.29 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.
As a certified reference material (CRM), 4-Chloro-2-(3-chlorophenyl)-5-(4-(2-fluorobenzoyl)piperazin-1-yl)pyridazin-3(2H)-one 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.
Physical & Chemical Properties
| Molecular Formula | C21H17Cl2FN4O2 |
| Molecular Weight | 447.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- 4-Chloro-N-(2-(4-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)ethyl)benzamide (CAS 338792-82-8)
- 1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)piperidin-4-one O-((4-chlorophenyl)carbamoyl) oxime (CAS 250714-01-3)
- 3'-Chloro-3-((2-chloro-6-fluorobenzyl)oxy)-2-methyl-5'-(trifluoromethyl)-4H-[1,2'-bipyridin]-4-one (CAS 303144-78-7)
- N'3-{[6-chloro-4-(trifluoromethyl)-3-pyridyl]carbonyl}-6-chloro-4-(trifluoromethyl)pyridine-3-carbohydrazide (CAS 680214-02-2)
- 1,4-Bis(2-chloro-1,1,1,3,3,3-hexafluoropropan-2-yl)benzene (CAS 667938-77-4)
- 7-Chloro-3-(2-ethyl-5-fluoro-4-((2-(trimethylsilyl)ethoxy)methoxy)phenyl)-4-methyl-2,6-naphthyridine (CAS 1956371-18-8)
- 2-((7-Chloro-3-cyclohexyl-4-oxo-3,4-dihydroquinazolin-2-yl)thio)-N-(2-cyano-3-methylbutan-2-yl)acetamide (CAS 778619-76-4)
- 5-Chloro-N1,N1,N3,N3-tetraphenylbenzene-1,3-diamine (CAS 1630850-28-0)
Recommended Standards
- 4,6-Bis(3-(trifluoromethoxy)phenoxy)pyrimidin-5-amine (CAS 864371-12-0)
- 5-(3-(Benzyloxy)-7-bromonaphthalen-2-yl)-1,2,5-thiadiazolidin-3-one 1,1-dioxide (CAS 1092455-32-7)
- Fmoc-Dap(bromoacetyl)-OH (CAS 1448613-98-6)
- [2-Bromo-6-(6-tert-butyl-8-fluoro-1-oxo-1,2-dihydrophthalazin-2-yl)phenyl]methyl acetate (CAS 1413063-73-6)
- 3-(4,5-Dimethoxy-2-nitrophenyl)-2-(3,4,5-trimethoxyphenyl)acrylic acid (CAS 353-23-6)
- Tetraethylammonium carbonate (CAS 52724-28-4)
- 2-Hydroxy-5-(1h-pyrrol-1-yl)benzoic acid (CAS 53242-70-9)
- 2-Fluoro-N-neopentylaniline (CAS 1225816-16-9)
- 3H-Thieno[2,3-d]imidazole-5-carboxylic acid (CAS 193066-59-0)
- Methyl 1-(2-((tert-butoxycarbonyl)amino)ethyl)-1H-benzo[d]imidazole-5-carboxylate (CAS 1427460-26-1)
- 1-(Pentafluoroethyl)-4-propyl-benzene (CAS 158536-00-6)
- 5-Methoxy-2,4-dinitroaniline (CAS 7072-80-2)
- N-(4-bromo-2-methoxyphenyl)-2,2,2-trifluoroacetamide (CAS 870838-52-1)
- Semaglutide Impurity 167 (CAS CATO-C4X-2226167)
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