N,2-bis(4-chlorophenyl)-N-methyl-1-oxo-1,2-dihydroisoquinoline-4-carboxamide CAS 439140-70-2
| CAS No. | 439140-70-2 |
| Molecular Formula | C23H16Cl2N2O2 |
| Molecular Weight | 423.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), N,2-bis(4-chlorophenyl)-N-methyl-1-oxo-1,2-dihydroisoquinoline-4-carboxamide 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.
N,2-bis(4-chlorophenyl)-N-methyl-1-oxo-1,2-dihydroisoquinoline-4-carboxamide (CAS 439140-70-2), molecular formula C23H16Cl2N2O2 and molecular weight 423.29 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, N,2-bis(4-chlorophenyl)-N-methyl-1-oxo-1,2-dihydroisoquinoline-4-carboxamide (C23H16Cl2N2O2) 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 423.29 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C23H16Cl2N2O2 |
| Molecular Weight | 423.29 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- N-(3,5-dichlorophenyl)-2-(4-methoxyphenyl)quinoline-4-carboxamide (CAS 332157-16-1)
- Piperazine, 1,4-bis[(p-chlorophenoxy)acetyl]- (CAS 4190-83-4)
- N-(3,4-Dichlorophenyl)-2-(3,5-diphenyl-1H-1,2,4-triazol-1-yl)acetamide (CAS 332358-11-9)
- Baclofen impurity 73（E-Isomer） (CAS CATO-C4X-101273)
- N-(1-(4-fluorophenyl)ethyl)cyclopropanamine hydrochloride (CAS 2366994-30-9)
- LY404039 (CAS 635318-11-5)
- (S)-3-(1H-Imidazol-4-yl)-2-(2-(2-mercaptoacetamido)acetamido)propanoic acid (CAS 66516-06-1)
- 2-phenylquinolin-4-amine hydrochloride (CAS 65197-47-9)
- 2-(6-Bromo-4-(difluoromethyl)-5-methylpyridin-3-yl)acetic acid (CAS 1805241-28-4)
- 1-Benzyl-2-(bromomethyl)aziridine (CAS 25662-24-2)
- 3-CHloro-2-(morpholin-4-ylmethyl)phenol (CAS 1545202-85-4)
- 76261-97-7 9-Heptadecenoic acid, (E)- CTK2G0715 (CAS 76261-97-7)
- Pentafluorophenyl 2-pyridin-4-ylpyrimidine-5-carboxylate (CAS 946409-27-4)
- ([13C6]Leu14)-Glucagon (1-29) (human, rat, porcine) trifluoroacetate salt (CAS 1802078-39-2)
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