| CAS No. | 51388-22-8 |
| Molecular Formula | C19H17Cl2N5O |
| Molecular Weight | 402.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO supplies 1-(5-Benzyl-4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)-3-(3,4-dichlorophenyl)guanidine (CAS 51388-22-8), a certified reference material (molecular formula C19H17Cl2N5O, MW 402.28 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 1-(5-Benzyl-4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)-3-(3,4-dichlorophenyl)guanidine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 402.28 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).
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), 1-(5-Benzyl-4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)-3-(3,4-dichlorophenyl)guanidine 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.
| Molecular Formula | C19H17Cl2N5O |
| Molecular Weight | 402.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |