4-(3-(2,4-Dichlorophenyl)isoxazol-5-yl)pyrimidin-2-amine CAS 264256-44-2
| CAS No. | 264256-44-2 |
| Molecular Formula | C13H8Cl2N4O |
| Molecular Weight | 307.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-(3-(2,4-Dichlorophenyl)isoxazol-5-yl)pyrimidin-2-amine.
4-(3-(2,4-Dichlorophenyl)isoxazol-5-yl)pyrimidin-2-amine (CAS 264256-44-2) is a high-purity analytical reference standard with the molecular formula C13H8Cl2N4O and a molecular weight of 307.13 g/mol.
Based on its molecular formula C13H8Cl2N4O, 4-(3-(2,4-Dichlorophenyl)isoxazol-5-yl)pyrimidin-2-amine contains a nitrogen-containing heterocyclic scaffold, 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 307.13 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.
As a certified reference material (CRM), 4-(3-(2,4-Dichlorophenyl)isoxazol-5-yl)pyrimidin-2-amine 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 | C13H8Cl2N4O |
| Molecular Weight | 307.13 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Dichlorophenyl Standards
- 2-(2,5-Dichlorophenyl)imidazo[1,2-a]pyridine-3-carboxylic acid (CAS 1426521-22-3)
- 3-(3,4-Dichlorophenyl)quinazoline-2,4(1H,3H)-dione (CAS 16395-11-2)
- 3-(3-(3,5-Dichlorophenyl)-1,2,4-oxadiazol-5-yl)pyridin-2-amine (CAS 1708168-87-9)
- 3-(3-(2,5-Dichlorophenyl)-1,2,4-oxadiazol-5-yl)pyridin-2-amine (CAS 1710344-90-3)
- 2-((2,4-Dichlorophenyl)amino)isoindoline-1,3-dione (CAS 320422-00-2)
- 2-(2,4-Dichlorophenyl)-3-hydroxyquinazolin-4(3H)-one (CAS 477864-73-6)
- 2-(3,4-Dichlorophenyl)-3-hydroxyquinazolin-4(3H)-one (CAS 306979-14-6)
- 2-[(2,6-Dichlorophenyl)methylidene]-6-hydroxy-2,3-dihydro-1-benzofuran-3-one (CAS 637753-87-8)
Recommended Standards
- 4-((tert-Butoxycarbonyl)amino)-3,6-dichloropicolinic acid (CAS 2287298-89-7)
- 4-[2-(4-Iodo-1H-pyrazol-1-yl)ethyl]morpholine (CAS 879488-16-1)
- 4-((tert-Butoxycarbonyl)amino)-2,6-dichloronicotinic acid (CAS 929288-17-5)
- 5-[2-(2,4-Dichlorophenoxy)phenyl]-2H-tetrazole (CAS 671186-08-6)
- 3,5-Dimethyl-4-(2,2,2-trifluoroethoxy)pyridine 1-oxide (CAS 103577-78-2)
- Methyl 2-(2-(3-((2-ethoxyphenyl)carbamoyl)-4-methylphenyl)acetamido)thiophene-3-carboxylate (CAS 505095-37-4)
- methyl cis-4-hydroxy-5-oxo-pyrrolidine-2-carboxylate (CAS 51163-88-3)
- 3-(2-Methoxy-5-methylphenyl)-1-(2-methylpropyl)-1h-pyrazole-4-carboxylic acid (CAS 1152578-50-1)
- 2-(1H-benzo[d]imidazol-2-yl)-3-(4-chlorophenyl)propanethioamide (CAS 1260920-39-5)
- Alectinib Impurity 80 (CAS CATO-C4X-283680)
- N-(4-chloro-1,1-dioxidotetrahydrothiophen-3-yl)butyramide (CAS 919740-95-7)
- 1-Phenyl-2-(2-thioxopyridin-1(2H)-yl)ethanone (CAS 61657-02-1)
- tert-Butyl 4-amino-4-(2-hydroxyethyl)piperidine-1-carboxylate (CAS 1312784-58-9)
- Semaglutide impurity 26 (CAS CATO-C4X-222626)
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