N'-[2-(4-Chlorophenoxy)ethanimidoyl]-3-(2,6-dichlorophenyl)-5-methyl-1,2-oxazole-4-carbohydrazide CAS 338405-57-5
| CAS No. | 338405-57-5 |
| Molecular Formula | C19H15Cl3N4O3 |
| Molecular Weight | 453.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies N'-[2-(4-Chlorophenoxy)ethanimidoyl]-3-(2,6-dichlorophenyl)-5-methyl-1,2-oxazole-4-carbohydrazide (CAS 338405-57-5), a certified reference material (molecular formula C19H15Cl3N4O3, MW 453.71 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, N'-[2-(4-Chlorophenoxy)ethanimidoyl]-3-(2,6-dichlorophenyl)-5-methyl-1,2-oxazole-4-carbohydrazide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 453.71 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), N'-[2-(4-Chlorophenoxy)ethanimidoyl]-3-(2,6-dichlorophenyl)-5-methyl-1,2-oxazole-4-carbohydrazide 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 | C19H15Cl3N4O3 |
| Molecular Weight | 453.71 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related N Standards
- 2-(4-Chlorophenoxy)-2-methyl-N-(4-(N-(thiazol-2-yl)sulfamoyl)phenyl)propanamide (CAS 587843-16-1)
- 2-((5-((4-Chlorophenoxy)methyl)-4-phenyl-4H-1,2,4-triazol-3-yl)thio)-N-phenylacetamide (CAS 131942-87-5)
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- (2Z)-7-(4-Chlorophenoxy)-2-[(2,5-difluorophenyl)methylidene]-3-phenyl-2,3-dihydro-1H-inden-1-one (CAS 337921-33-2)
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Recommended Standards
- 1-[(1Z)-1-{[(4-chlorophenyl)methoxy]amino}-2-(1H-1,2,4-triazol-1-yl)ethylidene]-3-(2,4-dichlorophenyl)urea (CAS 306976-67-0)
- 2-((4-Chlorobenzyl)thio)pyrimidine-4-carbaldehyde O-(2,6-dichloroisonicotinoyl) oxime (CAS 263755-78-8)
- 1-(4-Chlorophenyl)-3-[(1Z)-1-{[(2,6-dichlorophenyl)methoxy]amino}-2-(1H-1,2,4-triazol-1-yl)ethylidene]urea (CAS 339104-07-3)
- C10 Ceramide (d18:1/10:0) (CAS 111122-57-7)
- 1-[(Oxiran-2-yl)methyl]piperidine (CAS 4945-53-3)
- 4-(5-Bromopyrimidin-2-yl)thiomorpholine (CAS 1341761-16-7)
- 2-(Cyclopropylmethoxy)-5-isopropylbenzaldehyde (CAS 883525-90-4)
- 7647-15-6 LC1V549NOM Sodium bromide Sodium bromide [USP:JAN] Acunol Sodium bromide (NaBr) Bromide salt of sodium Bromnatrium [German] Caswell No. 750A EINECS 231-599-9 EPA Pesticide Chemical Code 013907 HSDB 5039 NSC 77384 Sedoneural Trisodium tribromide Bromnatrium UNII-LC1V549NOM EC 231-599-9 (CAS 7647-15-6)
- 3-Ethyl-5,7-dimethylbenzo[d]thiazol-2(3H)-imine 4-methylbenzenesulfonate (CAS 2034155-41-2)
- 6-Acetyl-2-amino-4,5,6,7-tetrahydro-thieno[2,3-c]pyridine-3-carboxylic acid ethyl ester (CAS 24237-43-2)
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- D-[Ser]11-Semaglutide (CAS CATO-CPTD788629)
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