(3Z)-4-[(3-Chloro-2-methylphenyl)amino]-3-(3,4-dimethoxyphenyl)but-3-en-2-one CAS 339017-39-9
| CAS No. | 339017-39-9 |
| Molecular Formula | C19H20ClNO3 |
| Molecular Weight | 345.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (3Z)-4-[(3-Chloro-2-methylphenyl)amino]-3-(3,4-dimethoxyphenyl)but-3-en-2-one.
(3Z)-4-[(3-Chloro-2-methylphenyl)amino]-3-(3,4-dimethoxyphenyl)but-3-en-2-one (CAS 339017-39-9), molecular formula C19H20ClNO3 and molecular weight 345.82 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (3Z)-4-[(3-Chloro-2-methylphenyl)amino]-3-(3,4-dimethoxyphenyl)but-3-en-2-one (C19H20ClNO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 345.82 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), (3Z)-4-[(3-Chloro-2-methylphenyl)amino]-3-(3,4-dimethoxyphenyl)but-3-en-2-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 | C19H20ClNO3 |
| Molecular Weight | 345.82 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Z Standards
- N-(3-Chloro-4-methoxyphenyl)-2-(thiophen-2-ylsulfonyl)acetamide (CAS 1021046-50-3)
- 1-(6-Chloro-4-methylquinolin-2-yl)-3-methyl-1,4-dihydroindeno[1,2-c]pyrazole (CAS 130946-69-9)
- 7-Chloro-4-[(4-propoxyphenyl)methyl]-2,3,4,5-tetrahydro-1,4-benzoxazepin-3-one (CAS 1326937-82-9)
- 1-Benzyl-3-chloro-5-(4-methylpiperazine-1-carbonyl)-1,2-dihydropyridin-2-one (CAS 339024-49-6)
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- 2-Chloro-1-(6,7-dimethoxy-1-phenyl-1,2,3,4-tetrahydroisoquinolin-2-yl)ethan-1-one (CAS 66040-35-5)
Recommended Standards
- (2Z)-2-{[(4-chlorophenyl)amino]methylidene}-3-phenyl-2,3-dihydro-1H-inden-1-one (CAS 337921-23-0)
- (4-(4-Aminophenyl)piperazin-1-yl)(5-chloro-2-methoxyphenyl)methanone (CAS 892693-46-8)
- (2E)-N-(5-Chloro-2-methoxyphenyl)-3-(4-propoxyphenyl)prop-2-enamide (CAS 803741-19-7)
- 1-(3-Chlorobenzyl)-3-(4-methylpiperazine-1-carbonyl)pyridin-2(1H)-one (CAS 338754-96-4)
- 4-((6-Bromo-2,3-dihydro-2-methyl-3-oxobenzo[b][1,4]oxazin-4-yl)methyl)benzoic Acid (CAS 1159978-66-1)
- 6-Chloro-2-iodo-1-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1638761-52-0)
- 4,6-difluoro-1H-indazole (CAS 885520-26-3)
- 2-(1H-Indazol-4-yl)-6-((4-(methylsulfonyl)piperazin-1-yl)methyl)-4-morpholinofuro[3,2-d]pyrimidine (CAS 956032-28-3)
- Amlodipine Besylate EP Impurity D (CAS 113994-41-5)
- [(3-Fluorophenyl)methyl](propyl)amine hydrochloride (CAS 90389-42-7)
- 3-Fluoro-2-(3-fluorophenyl)-6-(trifluoromethyl)pyridine (CAS 1214391-11-3)
- 4-Bromo-3-iodobenzoic Acid (CAS 42860-06-0)
- 23785-22-0 4-(chloromethyl)-1H-imidazole 4-Chloromethyl-1H-imidazole A4961 (CAS 23785-22-0)
- Tirzepatide Impurity 37 (CAS CATO-C4X-324037)
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