[(3Z)-1-[(4-Chlorophenyl)methyl]-5-nitro-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino 3-methylbutanoate CAS 303998-48-3
| CAS No. | 303998-48-3 |
| Molecular Formula | C20H18ClN3O5 |
| Molecular Weight | 415.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of [(3Z)-1-[(4-Chlorophenyl)methyl]-5-nitro-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino 3-methylbutanoate is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies [(3Z)-1-[(4-Chlorophenyl)methyl]-5-nitro-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino 3-methylbutanoate (CAS 303998-48-3), a certified reference material (molecular formula C20H18ClN3O5, MW 415.83 g/mol) for analytical method development and quality control.
Based on its molecular formula C20H18ClN3O5, [(3Z)-1-[(4-Chlorophenyl)methyl]-5-nitro-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino 3-methylbutanoate 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 415.83 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C20H18ClN3O5 |
| Molecular Weight | 415.83 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Z Standards
- N-(4-Chlorophenyl)-2-[4-(5-methyl-1,2,4-oxadiazol-3-yl)-1,3-dioxo-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidin-2-yl]acetamide (CAS 1775440-60-2)
- [(3Z)-1-[(4-Chlorophenyl)methyl]-5-nitro-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino pentanoate (CAS 303998-37-0)
- 3-(3-Chlorophenyl)-6,7-diphenyl-2H-oxazolo[3,2-a][1,3,5]triazine-2,4(3H)-dione (CAS 35629-67-5)
- 3-(4-Chlorophenyl)-6,7-diphenyl-2H-oxazolo[3,2-a][1,3,5]triazine-2,4(3H)-dione (CAS 35629-68-6)
- 3-[(E)-1-(4-Chlorophenyl)-2-(dimethylamino)ethenesulfonyl]-5-(trifluoromethyl)pyridine-2-carbonitrile (CAS 551930-73-5)
- 5-((4-Chlorophenyl)sulfonyl)-N-(2,4-difluorophenyl)-1,2,3-thiadiazole-4-carboxamide (CAS 672951-17-6)
- 5-((4-Chlorophenyl)thio)-N-(3-(trifluoromethyl)phenyl)-1,2,3-thiadiazole-4-carboxamide (CAS 303151-35-1)
- 2-[(2-Chlorophenyl)sulfanyl]-3-[3-(trifluoromethyl)phenyl]quinoline (CAS 339103-24-1)
Recommended Standards
- Indometacin Impurity 19 (CAS CATO-C4X-147019)
- 3-(2-Chloro-6-fluorophenyl)-5-methyl-4-[4-(3-nitrophenyl)-1,3-thiazol-2-yl]-1,2-oxazole (CAS 287176-94-7)
- N'-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-N'-methylnaphthalene-2-sulfonohydrazide (CAS 338748-70-2)
- Methyl 2-[(5-chloro-2-{[(1Z)-2-cyano-2-{[(ethoxycarbonyl)amino]carbonyl}eth-1-en-1-yl]amino}-3-fluorophenyl)sulfanyl]acetate (CAS 400078-03-7)
- H-β-tBu-D-Ala-OH (CAS 88319-43-1)
- 2-(3-Hydroxy-4,5-dimethoxyphenyl)acetonitrile (CAS 408335-71-7)
- N-Benzyl-1-(4-nitrobenzyl)-1H-imidazole-4-carboxamide (CAS 1351771-70-4)
- 2-Fluoro-N,N,4-trimethyl-5-nitroaniline (CAS 1803836-71-6)
- 4-(2,2-Difluoroethoxy)piperidine (CAS 1183898-34-1)
- 1-(2-methoxyphenyl)-2-sulfanylidene-1,3-diazinane-4,6-dione (CAS 330839-22-0)
- 3-((2-(5-Nitrothiophen-2-yl)quinazolin-4-yl)amino)propane-1,2-diol (CAS 33372-40-6)
- 1-Propan-2-yl-4-(trifluoromethyl)pyrrole-3-carboxylic acid (CAS 1341766-01-5)
- 5,6,7,8-Tetrahydroisoquinoline-3-carbaldehyde (CAS 185220-62-6)
- Neuropeptide FF (CAS 99566-27-5)
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