4-(((3,5-Dichlorophenyl)imino)methyl)-5-ethoxy-2-phenyl-1,2-dihydro-3H-pyrazol-3-one CAS 338750-96-2
| CAS No. | 338750-96-2 |
| Molecular Formula | C18H15Cl2N3O2 |
| Molecular Weight | 376.24 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.
CATO supplies 4-(((3,5-Dichlorophenyl)imino)methyl)-5-ethoxy-2-phenyl-1,2-dihydro-3H-pyrazol-3-one (CAS 338750-96-2), a certified reference material (molecular formula C18H15Cl2N3O2, MW 376.24 g/mol) for analytical method development and quality control.
Based on its molecular formula C18H15Cl2N3O2, 4-(((3,5-Dichlorophenyl)imino)methyl)-5-ethoxy-2-phenyl-1,2-dihydro-3H-pyrazol-3-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 376.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 4-(((3,5-Dichlorophenyl)imino)methyl)-5-ethoxy-2-phenyl-1,2-dihydro-3H-pyrazol-3-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 | C18H15Cl2N3O2 |
| Molecular Weight | 376.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Dichlorophenyl Standards
- 3-(2,6-Dichlorophenyl)-N,5-dimethyl-N-(pyridin-3-ylmethyl)isoxazole-4-carboxamide (CAS 329701-54-4)
- 5-{[(2,4-dichlorophenyl)methyl]sulfanyl}-2H,3H-imidazo[1,2-c]quinazolin-2-one (CAS 478046-18-3)
- 4-(2,4-Dichlorophenyl)-5-(ethylsulfonyl)-1H-thieno[2,3-c]pyrazol-3-amine (CAS 1708269-30-0)
- (E)-4-(2-(3,4-dichlorophenyl)hydrazono)-1-methyl-3,4-dihydro-1H-thieno[3,2-c][1,2]thiazine 2,2-dioxide (CAS 477845-67-3)
- 5-[(2,4-Dichlorophenyl)methylene]-4-oxo-2-thioxo-3-thiazolidinebutanoic acid (CAS 300378-68-1)
- Methyl 3-(2-((2,3-dichlorophenyl)thio)acetamido)thiophene-2-carboxylate (CAS 477887-64-2)
- Methyl 3-(2-((2,5-dichlorophenyl)thio)acetamido)thiophene-2-carboxylate (CAS 477887-65-3)
- 1-(3,4-Dichlorophenyl)-4-[5-(trifluoromethyl)pyridin-2-yl]piperazine (CAS 400089-02-3)
Recommended Standards
- 3-Amino-1-methyl-5-((5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl)methylene)piperidine-2,4,6-trione (CAS 2096353-38-5)
- 5-(1-(2,4-Dichlorophenoxy)ethyl)-N-phenyl-1H-pyrazole-1-carboxamide (CAS 321385-66-4)
- 6-((4-Bromophenyl)(pyrrolidin-1-yl)methyl)benzo[d][1,3]dioxol-5-ol (CAS 439108-76-6)
- 2-(6,8-Dichloro-4-oxoquinazolin-3(4H)-yl)-N-ethyl-N-phenylacetamide (CAS 618443-81-5)
- 2-(Aminomethyl)-6-cyclopropoxybenzoic acid (CAS 1243473-58-6)
- Piperidin-3-yl(3-(trifluoromethyl)phenyl)methanone (CAS 1225556-50-2)
- 2-[4-(pyrimidin-2-yloxy)phenyl]acetonitrile (CAS 339105-55-4)
- DL-alpha-Tocopherol (CAS 10191-41-0)
- Barbadin (CAS 356568-70-2)
- 7-Methoxy-4-methyl-2-oxo-2H-chromene-3-carbonitrile (CAS 28132-19-6)
- 1-Allyl-1H-benzo[d]imidazol-2-amine (CAS 201299-82-3)
- 3-Methoxy-4-(methoxymethoxy)aniline (CAS 98960-08-8)
- (S)-4-methyl-2-(1H-tetrazol-1-yl)pentanoic acid (CAS 1218436-73-7)
- Tau Peptide (277-291) trifluoroacetate salt (CAS 330456-40-1)
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