5-(4-Methylbenzoyl)pyrimidine-2,4(1H,3H)-dione CAS 91973-86-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 91973-86-3 |
| Molecular Formula | C18H14ClNO2 |
| Molecular Weight | 311.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(4-Methylbenzoyl)pyrimidine-2,4(1H,3H)-dione (CAS 91973-86-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H14ClNO2. Molecular weight: 311.76 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H14ClNO2 |
| Molecular Weight | 311.76 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 5-(2-Chlorophenyl)-N-(p-tolyl)furan-2-carboxamide (CAS 199458-98-5)
- 5-Chloro-3-(morpholinosulfonyl)thiophene-2-carboxylic acid (CAS 948015-50-7)
- 5-(2-Chlorophenyl)-N-(o-tolyl)furan-2-carboxamide (CAS 199458-96-3)
- 1,1'-(p-Tolylmethylene)bis(1H-benzo[d][1,2,3]triazole) (CAS 111098-80-7)
- Methyl 2,4-dimethyl-1-oxaspiro[2.5]octane-2-carboxylate (CAS 1558612-95-5)
- 7-chloro-6-fluoro-1,2-dihydroquinazolin-2-one (CAS 1593596-55-4)
- 5-Methoxy-2,3-dihydro-1-benzofuran-4-carbaldehyde (CAS 156297-81-3)
- 4-((1H-Pyrrol-1-yl)sulfonyl)aniline (CAS 18836-86-7)
- 3-Ethyl-1-methyl-4-nitroindolin-2-one (CAS 505029-55-0)
- Semaglutide impurity 65 (CAS CATO-C4X-222665)
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