5-{[(E)-(4-Fluorophenyl)methylidene]amino}-6-imino-2-oxo-1-phenyl-1,2,3,6-tetrahydro-4-pyrimidinecarbonitrile CAS 937604-56-3
| CAS No. | 937604-56-3 |
| Molecular Formula | C18H12FN5O |
| Molecular Weight | 333.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-{[(E)-(4-Fluorophenyl)methylidene]amino}-6-imino-2-oxo-1-phenyl-1,2,3,6-tetrahydro-4-pyrimidinecarbonitrile is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-{[(E)-(4-Fluorophenyl)methylidene]amino}-6-imino-2-oxo-1-phenyl-1,2,3,6-tetrahydro-4-pyrimidinecarbonitrile (CAS 937604-56-3), molecular formula C18H12FN5O and molecular weight 333.32 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-{[(E)-(4-Fluorophenyl)methylidene]amino}-6-imino-2-oxo-1-phenyl-1,2,3,6-tetrahydro-4-pyrimidinecarbonitrile (C18H12FN5O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 333.32 g/mol, it falls into the moderately-high-molecular-weight range. 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), 5-{[(E)-(4-Fluorophenyl)methylidene]amino}-6-imino-2-oxo-1-phenyl-1,2,3,6-tetrahydro-4-pyrimidinecarbonitrile 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 | C18H12FN5O |
| Molecular Weight | 333.32 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 5 |
Related E Standards
- 1-(2-Fluorophenyl)-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1011397-00-4)
- 1-(4-Fluorophenyl)-6-phenyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1011397-67-3)
- 4-(4-(4-Fluorophenyl)-5-oxo-2,5-dihydrofuran-3-yl)benzenesulfonamide (CAS 162012-33-1)
- 5,7-Bis(2-fluorophenyl)quinolin-8-ol (CAS 648896-58-6)
- N-((1-(4-Fluorophenyl)-1H-tetrazol-5-yl)methyl)benzenesulfonamide (CAS 941964-37-0)
- Ethyl 3-((3-(2-fluorophenyl)-1,2,4-oxadiazol-5-yl)methyl)piperidine-1-carboxylate (CAS 1705102-68-6)
- n-(2-Fluorophenyl)-2-(8-methyl-2,4-dioxo-1,3-diazaspiro[4.5]decan-3-yl)acetamide (CAS 849679-55-6)
- N-(4-Fluorophenyl)-2-(8-methyl-2,4-dioxo-1,3-diazaspiro[4.5]decan-3-yl)acetamide (CAS 853323-51-0)
Recommended Standards
- 5-(N-(1H-indazol-6-yl)sulfamoyl)-2-hydroxybenzoic acid (CAS 854358-00-2)
- Diethyl (2-(phenylcarbamoyl)phenyl)phosphonate (CAS 41327-48-4)
- 4-[[(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)sulfonyl]amino]benzoic acid (CAS 726155-15-3)
- N-([1,3]Dioxolo[4',5':4,5]benzo[1,2-d]thiazol-6-yl)-2-(2,5-dioxopyrrolidin-1-yl)acetamide (CAS 892851-42-2)
- 2-Chloro-4-iodo-6-methoxypyridine (CAS 1227602-76-7)
- 7-Methoxy-2,3-dihydro-1,8-naphthyridin-4(1H)-one (CAS 82070-49-3)
- 3-Methylpyrrole-2,4-dicarboxylic Acid (CAS 3780-41-4)
- 3,3'-(Propane-2,2-diyl)bis(7-oxabicyclo[4.1.0]heptane) (CAS 14513-43-0)
- Ethyl 2-formyl-4H-thieno[3,2-b]pyrrole-5-carboxylate (CAS 59958-27-9)
- 6-Methylimidazo[1,5-c]pyrimidin-5(6H)-one (CAS 488761-23-5)
- 3-((8-Methoxy-6-methylquinolin-4-yl)amino)benzoic acid (CAS 1315373-28-4)
- tert-Butyl 4-(cyanomethyl)-4-methylpiperidine-1-carboxylate (CAS 872850-30-1)
- Tris(3-chlorophenyl)(dodecyl)silane (CAS 18764-96-0)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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