(4Z)-2-[(4-Chlorophenyl)methoxy]-4-{[(4-methylphenyl)amino]methylidene}-1,2,3,4-tetrahydroisoquinoline-1,3-dione CAS 338419-55-9
| CAS No. | 338419-55-9 |
| Molecular Formula | C24H19ClN2O3 |
| Molecular Weight | 418.87 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(4Z)-2-[(4-Chlorophenyl)methoxy]-4-{[(4-methylphenyl)amino]methylidene}-1,2,3,4-tetrahydroisoquinoline-1,3-dione (CAS 338419-55-9), molecular formula C24H19ClN2O3 and molecular weight 418.87 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (4Z)-2-[(4-Chlorophenyl)methoxy]-4-{[(4-methylphenyl)amino]methylidene}-1,2,3,4-tetrahydroisoquinoline-1,3-dione (C24H19ClN2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 418.87 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures (4Z)-2-[(4-Chlorophenyl)methoxy]-4-{[(4-methylphenyl)amino]methylidene}-1,2,3,4-tetrahydroisoquinoline-1,3-dione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C24H19ClN2O3 |
| Molecular Weight | 418.87 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- (R)-1-methoxybutan-2-ol (CAS 39010-62-3)
- 3-Chloro-4-(3-methoxy-3-methylbutoxy)aniline (CAS 883547-24-8)
- N-(4-Pyridinylmethyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine-3-carboxamide hydrochloride (CAS 1220035-44-8)
- Semaglutide impurity 25 (CAS CATO-C4X-222625)
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