Dimethyl 5-(3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido)isophthalate CAS 310452-97-2
| CAS No. | 310452-97-2 |
| Molecular Formula | C21H17ClN2O6 |
| Molecular Weight | 428.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Dimethyl 5-(3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido)isophthalate (CAS 310452-97-2), molecular formula C21H17ClN2O6 and molecular weight 428.82 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Dimethyl 5-(3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido)isophthalate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 428.82 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C21H17ClN2O6 |
| Molecular Weight | 428.82 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) | 14.0 |
| 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
- 2,4-dichloro-1,5-diiodo-3-methoxybenzene (CAS 1221589-80-5)
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- 5-Chloro-2-(2-(2-((3-(furan-3-yl)phenyl)amino)-2-oxoethoxy)acetamido)benzoic acid (CAS 1190221-43-2)
- Lenvatinib Impurity 85 (CAS CATO-C4X-114085)
- 2,3-Diaminonaphthalene (CAS 771-97-1)
- 2,5-Bis(2-ethylhexyl)-3,6-di(thiophen-2-yl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione (CAS 1185885-86-2)
- 4-((2-Methylbenzyl)oxy)benzonitrile (CAS 172167-22-5)
- 1-((1H-Benzo[d][1,2,3]triazol-1-yl)methyl)indolin-2-one (CAS 147227-57-4)
- 2-(1-((Benzyloxy)carbonyl)-4-((tert-butoxycarbonyl)amino)piperidin-4-yl)acetic acid (CAS 303037-51-6)
- 4-((3-(Furan-2-yl)allylidene)amino)-3-(2-methoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478257-18-0)
- 2-Chloro-N-(3-chloro-4-methylphenyl)-2-phenylacetamide (CAS 728908-03-0)
- (4,5-Dibromo-1H-imidazol-2-yl)methanol (CAS 193066-54-5)
- 1-Isopropyl-3-((4s)-4-methoxypyrrolidin-3-yl)urea (CAS 1217988-55-0)
- Galanin Message Associated Peptide (44-59) amide (CAS 125455-59-6)
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