2-((3-(2-Chlorophenyl)isoxazol-5-yl)methyl)isoindoline-1,3-dione CAS 551921-28-9
| CAS No. | 551921-28-9 |
| Molecular Formula | C18H11ClN2O3 |
| Molecular Weight | 338.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 2-((3-(2-Chlorophenyl)isoxazol-5-yl)methyl)isoindoline-1,3-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 338.74 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 2-((3-(2-Chlorophenyl)isoxazol-5-yl)methyl)isoindoline-1,3-dione (CAS 551921-28-9), a certified reference material (molecular formula C18H11ClN2O3, MW 338.74 g/mol) for analytical method development and quality control.
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), 2-((3-(2-Chlorophenyl)isoxazol-5-yl)methyl)isoindoline-1,3-dione 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 | C18H11ClN2O3 |
| Molecular Weight | 338.74 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 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorophenyl Standards
- 2-{[3-(4-chlorophenyl)-1,2-oxazol-5-yl]methyl}-2,3-dihydro-1H-isoindole-1,3-dione (CAS 478048-78-1)
- Methyl 4-(4-chlorophenyl)-6-(2-methoxy-2-oxoethyl)-2-oxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate (CAS 952183-64-1)
- 1-(3-Chlorophenyl)-4-(3-phenyl-1,2,4-oxadiazol-5-yl)-1H-1,2,3-triazol-5-amine (CAS 892759-86-3)
- 2-(4-Chlorophenyl)-5-((quinazolin-4-yloxy)methyl)-1,3,4-oxadiazole (CAS 793722-88-0)
- 5-(3-Chlorophenyl)-1-[(4-fluorophenyl)methyl]-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 338955-47-8)
- 5-(4-Chlorophenyl)-1-(3-fluorobenzyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 338423-58-8)
- 5-(4-Chlorophenyl)-1-[(2-fluorophenyl)methyl]-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 338423-53-3)
- 5-(4-Chlorophenyl)-1-[(4-fluorophenyl)methyl]-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 338954-77-1)
Recommended Standards
- (2S,3S,4S,5R,6S)-2-(Chloromethyl)-6-methoxytetrahydro-2H-pyran-3,4,5-triyl triacetate (CAS 6087-46-3)
- 2-(Chloromethyl)-6-methoxytetrahydro-2H-pyran-3,4,5-triyl triacetate (CAS 53691-80-8)
- (2S,3R,4S,5R)-2-(2-chloroethoxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (CAS 18404-86-9)
- 4-O-Demethyl Griseofulvin (CAS 1158186-19-6)
- 2-(4-Methoxyphenoxy)-5-methylaniline (CAS 17419-03-3)
- 4-Ethoxy-N-ethyl-6-(1-methylhydrazinyl)-1,3,5-triazin-2-amine (CAS 127016-04-0)
- 4-(3-Aminophenoxy)picolinamide (CAS 284462-79-9)
- 1-[2-(acetyloxy)ethyl]-2-methyl-4,5,6,7-tetrahydro-1H-1,3-benzodiazole-5-carboxylic acid (CAS 1803601-27-5)
- p-Toluidine 5-bromo-4-chloro-1H-indol-3-yl sulfate (CAS 6581-23-3)
- 9-Hydroxybenzo[h]quinoline-8-carboxylic acid (CAS 808119-58-6)
- Arbidol Impurity 33 (CAS CATO-C4X-112933)
- tert-Butyl (1-(3-cyanophenyl)ethyl)carbamate (CAS 2089257-40-7)
- 4-Cyclopropyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 2241865-20-1)
- Semaglutide impurity 261 (CAS CATO-C4X-2226261)
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