(3E)-3-{[(2-chloro-4-fluorophenyl)methoxy]imino}-1-[2-(4-chlorophenyl)-1,3-thiazol-5-yl]propan-1-one CAS 339279-43-5
| CAS No. | 339279-43-5 |
| Molecular Formula | C19H13Cl2FN2O2S |
| Molecular Weight | 423.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(3E)-3-{[(2-chloro-4-fluorophenyl)methoxy]imino}-1-[2-(4-chlorophenyl)-1,3-thiazol-5-yl]propan-1-one (CAS 339279-43-5), molecular formula C19H13Cl2FN2O2S and molecular weight 423.29 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, (3E)-3-{[(2-chloro-4-fluorophenyl)methoxy]imino}-1-[2-(4-chlorophenyl)-1,3-thiazol-5-yl]propan-1-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 423.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C19H13Cl2FN2O2S |
| Molecular Weight | 423.29 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related E Standards
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Recommended Standards
- (3-(2-((4-Chlorobenzyl)oxy)phenyl)-1H-pyrazol-1-yl)(4-chlorophenyl)methanone (CAS 477713-38-5)
- 1H-Indole-1-carboxylic acid, 2-borono-5-[(4-methyl-1-piperazinyl)sulfonyl]-, 1-(1,1-dimethylethyl) ester (CAS 519148-74-4)
- (3-(2-((4-Chlorobenzyl)oxy)phenyl)-1H-pyrazol-1-yl)(3-chlorophenyl)methanone (CAS 477713-41-0)
- 2-(2,4-Dichlorophenyl)-N-(2-methoxyphenyl)quinoline-4-carboxamide (CAS 337501-93-6)
- 2-(3-Fluoro-4-methoxyphenyl)piperidine (CAS 901917-84-8)
- 3-Amino-N,N-dimethyl-4-(propan-2-yloxy)benzene-1-sulfonamide (CAS 1152837-83-6)
- 2-(4-Chloro-3-methylphenoxy)ethan-1-ol (CAS 705-82-8)
- 3-[(1R)-3-[Bis(1-methylethyl)amino]-1-phenylpropyl]-4-hydroxybenzoicacid methyl esterHydrochloride (CAS 214600-45-0)
- 2-((4-((3-(tert-Butoxy)-3-oxopropyl)amino)cyclohexyl)amino)acetic acid (CAS 1353962-13-6)
- 2-(6-Chloro-2-oxoindolin-5-yl)acetic acid (CAS 188797-78-6)
- Tert-butyl 6-(((benzyloxy)carbonyl)amino)-2-azaspiro[3.3]Heptane-2-carboxylate (CAS 1239589-54-8)
- 1’-Hydroxy[1,1’-bicyclohexyl]-1-carbonitrile (CAS 57527-71-6)
- 2-(3-Amino-4-methyl-1h-pyrazol-1-yl)-N-methylacetamide (CAS 1344080-12-1)
- Mitogenic Pentapeptide (CAS 87173-03-3)
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