(S)-1-(4-chlorophenyl)-7-isopropoxy-6-methoxy-2-(4-nitrophenyl)-1,2-dihydroisoquinolin-3(4H)-one CAS 1821463-87-9
| CAS No. | 1821463-87-9 |
| Molecular Formula | C25H23ClN2O5 |
| Molecular Weight | 466.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(S)-1-(4-chlorophenyl)-7-isopropoxy-6-methoxy-2-(4-nitrophenyl)-1,2-dihydroisoquinolin-3(4H)-one (CAS 1821463-87-9), molecular formula C25H23ClN2O5 and molecular weight 466.91 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C25H23ClN2O5, (S)-1-(4-chlorophenyl)-7-isopropoxy-6-methoxy-2-(4-nitrophenyl)-1,2-dihydroisoquinolin-3(4H)-one contains a flavonoid 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 466.91 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (S)-1-(4-chlorophenyl)-7-isopropoxy-6-methoxy-2-(4-nitrophenyl)-1,2-dihydroisoquinolin-3(4H)-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 | C25H23ClN2O5 |
| Molecular Weight | 466.91 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related S Standards
- 1-(4-Chlorophenyl)-7-isopropoxy-6-methoxy-2-(4-nitrophenyl)-1,2-dihydroisoquinolin-3(4H)-one (CAS 1821463-86-8)
- 6-[(2E)-2-{[(4-chlorophenyl)methoxy]imino}ethyl]-1-[2-(3,4-dimethoxyphenyl)ethyl]-4-oxo-1,4-dihydropyrimidine-5-carbonitrile (CAS 303148-52-9)
- 3-((4-Chlorophenyl)sulfonyl)-1-(furan-2-ylmethyl)-2-imino-1H-dipyrido[1,2-a:2',3'-d]pyrimidin-5(2H)-one (CAS 606953-01-9)
- 2-(4-Chlorophenyl)-4-(4-methyl-5-((3-(trifluoromethyl)benzyl)thio)-4H-1,2,4-triazol-3-yl)thiazole (CAS 338760-88-6)
- 2-((4-(4-Chlorophenyl)-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)-1-(2,5-dimethoxyphenyl)ethanone (CAS 618880-40-3)
- 2-((5-(4-Chlorophenyl)-4-(p-tolyl)-4H-1,2,4-triazol-3-yl)thio)-N-(3-fluoro-4-methylphenyl)acetamide (CAS 477330-91-9)
- 5-((4-Chlorophenyl)thio)-4-(2,4-dichlorophenyl)-2-(3,5-dimethyl-1H-pyrazol-1-yl)thiazole (CAS 956394-94-8)
- 2-{2-[2-(4-chlorophenyl)adamantan-2-yl]acetamido}ethyl N-phenylcarbamate (CAS 400085-12-3)
Recommended Standards
- (2E)-3-Amino-3-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-2-cyano-N-phenylprop-2-enethioamide (CAS 338959-69-6)
- Rivaroxaban Impurity 207 (CAS CATO-C4X-1090207)
- Ethyl 5-[({1-[(1Z)-{[(4-chlorophenyl)methoxy]imino}methyl]naphthalen-2-yl}oxy)methyl]-4,5-dihydro-1,2-oxazole-3-carboxylate (CAS 321432-26-2)
- 4-{3-[(4-chlorobenzenesulfonyl)methyl]-4-nitrophenyl}-2-(pyridin-3-yl)pyrimidine (CAS 303145-52-0)
- 2-(Difluoromethyl)-4-methoxy-5-methylpyridine-3-sulfonamide (CAS 1805066-23-2)
- N-(2-Cyano-5-cyclopropoxypyridin-4-yl)methanesulfonamide (CAS 1243407-09-1)
- 3-(1,3-Dioxan-2-yl)-1-(4-propylphenyl)propan-1-one (CAS 884504-30-7)
- 3-Bromo-6-isopropyl-5-methylpyrazolo[1,5-a]pyrimidin-7(4H)-one (CAS 1935819-87-6)
- 3-[1-(2-fluorophenyl)-2,5-dimethyl-1H-pyrrol-3-yl]-3-oxopropanenitrile (CAS 327084-91-3)
- 2-Bromo-4-(bromomethyl)benzoic acid (CAS 345953-39-1)
- 3-Bromo-5-(3,5-difluorobenzyl)-1H-1,2,4-triazole (CAS 1219585-70-2)
- 3-(oxolan-2-yl)butanoic acid (CAS 250239-77-1)
- tert-butyl (2R,5S)-5-(3-amino-1-methyl-pyrrolidin-2-yl)-2-methyl-piperidine-1-carboxylate (CAS 2351733-81-6)
- Semaglutide Impurity 155 (x TFA Salt) (CAS CATO-C4X-2226155)
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