5-{[(2,4-dichlorophenyl)methylidene]amino}-6-imino-2-oxo-1-phenyl-1,2,3,6-tetrahydropyrimidine-4-carbonitrile CAS 1020251-99-3
| CAS No. | 1020251-99-3 |
| Molecular Formula | C18H11Cl2N5O |
| Molecular Weight | 384.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 5-{[(2,4-dichlorophenyl)methylidene]amino}-6-imino-2-oxo-1-phenyl-1,2,3,6-tetrahydropyrimidine-4-carbonitrile is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 384.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 5-{[(2,4-dichlorophenyl)methylidene]amino}-6-imino-2-oxo-1-phenyl-1,2,3,6-tetrahydropyrimidine-4-carbonitrile (CAS 1020251-99-3), a certified reference material (molecular formula C18H11Cl2N5O, MW 384.22 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C18H11Cl2N5O |
| Molecular Weight | 384.22 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related dichlorophenyl Standards
- (3E)-3-{[(2,4-dichlorophenyl)methoxy]imino}-N'-[2-(1H-1,2,4-triazol-1-yl)ethanimidoyl]propanehydrazide (CAS 338405-46-2)
- 2-(2,4-Dichlorophenyl)-2-[4-(4-fluorobenzoyl)phenyl]acetonitrile (CAS 339115-06-9)
- Methyl 1-((3,4-dichlorophenyl)sulfonyl)-1H-indole-2-carboxylate (CAS 220664-09-5)
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Recommended Standards
- 5-Carboxy-6-hydroxymethyl Dehydro Felodipine (CAS 96558-29-1)
- 2-(((4-(4,5-Dichloro-1H-imidazol-1-yl)phenyl)imino)methyl)-3-hydroxy-1H-inden-1-one (CAS 1024316-38-8)
- 3-Amino-5-methoxybenzonitrile (CAS 211032-07-4)
- ethyl 5-bromo-3-[(tert-butoxycarbonyl)amino]-1-benzofuran-2-carboxylate (CAS 1160474-41-8)
- 3-(3-Methyl-2-oxo-2,3-dihydro-1h-1,3-benzodiazol-1-yl)propanoic acid (CAS 75655-45-7)
- tert-Butyl spiro[7,8-dihydro-6H-[1,2,4]triazolo[1,5-a]pyrazine-5,4'-piperidine]-1'-carboxylate (CAS 1273566-99-6)
- N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-2,4-difluoro-D-phenylalanine (CAS 1217820-78-4)
- Penta-1,4-dien-3-one (CAS 1890-28-4)
- (S)-2-Amino-N-(2-cyanobenzyl)-N-isopropyl-3-methylbutanamide (CAS 1354001-17-4)
- N-(9-((2R,3R,4R,5R)-5-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-3-fluoro-4-hydroxytetrahydrofuran-2-yl)-6-oxo-6,9-dihydro-3H-purin-2-yl)isobutyramide (CAS 144089-96-3)
- Dimethyl 1-(3-chloro-2-methylphenyl)-1H-1,2,3-triazole-4,5-dicarboxylate (CAS 895650-44-9)
- 6,6'-Disulfanediylbis(benzo[d]oxazol-2(3H)-one) (CAS 289499-47-4)
- (4-Chloro-3,5-dimethylfuran-2-yl)(phenyl)methanol (CAS 1443305-45-0)
- Tirzepatide Impurity 23 X TFA Salt (CAS CATO-C4X-324023)
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