7-Chloro-2-phenyl-5-(p-tolyl)oxazolo[4,5-d]pyrimidine CAS 1241709-22-7
| CAS No. | 1241709-22-7 |
| Molecular Formula | C18H12ClN3O |
| Molecular Weight | 321.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 7-Chloro-2-phenyl-5-(p-tolyl)oxazolo[4,5-d]pyrimidine is closely related to a steroid 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 7-Chloro-2-phenyl-5-(p-tolyl)oxazolo[4,5-d]pyrimidine (CAS 1241709-22-7), a certified reference material (molecular formula C18H12ClN3O, MW 321.76 g/mol) for analytical method development and quality control.
7-Chloro-2-phenyl-5-(p-tolyl)oxazolo[4,5-d]pyrimidine (C18H12ClN3O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), 7-Chloro-2-phenyl-5-(p-tolyl)oxazolo[4,5-d]pyrimidine 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 | C18H12ClN3O |
| Molecular Weight | 321.76 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- Methyl 2-{[(5-chloro-1,3-dimethyl-1H-pyrazol-4-yl)carbonyl]amino}-2-phenylacetate (CAS 1096440-16-2)
- N-(3-Chloro-4-methylphenyl)-3-(6-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)propanamide (CAS 1105202-77-4)
- 2-chloro-8-methyl-3-(5-phenyl-1,2,4-oxadiazol-3-yl)quinoline (CAS 1142201-67-9)
- 3-(2-Chloro-7-methylquinolin-3-yl)-5-phenyl-1,2,4-oxadiazole (CAS 1142201-73-7)
- 7-Chloro-5-phenyl-2-(p-tolyl)oxazolo[4,5-d]pyrimidine (CAS 1225162-95-7)
- 1-(5-Chloro-2-methoxyphenyl)-3-(2-(dimethylamino)pyrimidin-5-yl)urea (CAS 1396873-69-0)
- Ethyl 5-chloro-6-((4-methoxybenzyl)amino)pyrimidine-4-carboxylate (CAS 1415562-75-2)
- 3-(2-Chloro-6-methylquinolin-3-yl)-5-phenyl-1,2,4-oxadiazole (CAS 1431728-48-1)
Recommended Standards
- (3AR,4S,6R,6aS)-6-(4-chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-2,2-dimethyltetrahydro-4H-cyclopenta[d][1,3]dioxole-4-carbaldehyde (CAS 1379540-71-2)
- 4-Chloro-2-(4-(ethoxycarbonyl)-1,5-dimethyl-1H-pyrrol-2-yl)benzoic acid (CAS 1644543-61-2)
- Ethyl 2-[1-(3-chlorophenyl)-3,5-dimethyl-1h-pyrazol-4-yl]-2-(n-hydroxyimino)acetate (CAS 1006482-03-6)
- 1-(2-Chlorophenyl)-3-(4-(dimethylamino)-2-methoxypyrimidin-5-yl)urea (CAS 1797659-87-0)
- 2-Fluoro-5-(propan-2-yl)benzoic acid (CAS 1341654-82-7)
- N-(thiazolo[5,4-b]pyridin-2-yl)benzamide (CAS 742640-87-5)
- TERT-BUTYL 4-(2-AMINO-4-BROMOPHENYL AMINO)PIPERIDINE-1-CARBOXYLATE (CAS 1383968-85-1)
- Gatifloxacin Impurity 2 (CAS 172426-86-7)
- Trans-N1,N4-dimethylcyclohexane-1,4-diamine (CAS 6921-01-3)
- cis-2-Fluoro-1-phenylcyclopropyl)methanamine (CAS 681806-70-2)
- 5-(2-(Furan-3-yl)ethyl)-1,4a-dimethyl-6-methylenedecahydronaphthalene-1-carboxylic acid (CAS 1235-77-4)
- 53483-21-9 1-Chloro-3-(2-methylprop-2-en-1-yl)benzene DTXSID90609228 (CAS 53483-21-9)
- 1-(Hydroxymethyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 79570-57-3)
- Insulin Degludec Impurity 17 (CAS CATO-C4X-215717)
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