(E)-3-((4-(2,4-dichlorostyryl)pyrimidin-2-yl)thio)-5-(trifluoromethyl)picolinamide CAS 338968-24-4
| CAS No. | 338968-24-4 |
| Molecular Formula | C19H11Cl2F3N4OS |
| Molecular Weight | 471.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (E)-3-((4-(2,4-dichlorostyryl)pyrimidin-2-yl)thio)-5-(trifluoromethyl)picolinamide.
(E)-3-((4-(2,4-dichlorostyryl)pyrimidin-2-yl)thio)-5-(trifluoromethyl)picolinamide (CAS 338968-24-4) is a high-purity analytical reference standard with the molecular formula C19H11Cl2F3N4OS and a molecular weight of 471.28 g/mol.
Structurally, (E)-3-((4-(2,4-dichlorostyryl)pyrimidin-2-yl)thio)-5-(trifluoromethyl)picolinamide (C19H11Cl2F3N4OS) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 471.28 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.
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 | C19H11Cl2F3N4OS |
| Molecular Weight | 471.28 g/mol |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related E Standards
- (E)-4-(2,4-dichlorostyryl)-8-phenoxy-2,3-dihydrothieno[3,2-c]quinoline (CAS 865658-57-7)
- (E)-4-(2,6-dichlorostyryl)-8-phenoxy-2,3-dihydrothieno[3,2-c]quinoline (CAS 866018-48-6)
- (E)-2-(2,4-dichlorostyryl)-1-(4-(trifluoromethyl)benzyl)-1H-benzo[d]imidazole (CAS 321433-13-0)
- (E)-3-((2-(2,4-dichlorostyryl)-1H-benzo[d]imidazol-1-yl)methyl)benzonitrile (CAS 321433-19-6)
- (E)-2-(2,4-dichlorostyryl)-1-(4-methylbenzyl)-1H-benzo[d]imidazole (CAS 321433-12-9)
- (E)-2-(2,4-dichlorostyryl)-3-phenylquinazolin-4(3H)-one (CAS 190437-53-7)
- (E)-6-(2,6-dichlorostyryl)-2-(ethylthio)-4,4-dimethyl-1,4-dihydropyrimidine (CAS 303148-85-8)
- (E)-6-(2,4-dichlorostyryl)-4,4-dimethyl-2-(methylthio)-1,4-dihydropyrimidine (CAS 329234-89-1)
Recommended Standards
- (2Z)-4,4,4-Trifluoro-3-oxo-N-[3-(trifluoromethyl)phenyl]-2-{2-[3-(trifluoromethyl)phenyl]hydrazin-1-ylidene}butanamide (CAS 478067-06-0)
- (S)-Methyl 2,5-diaminopentanoate (CAS 6384-10-7)
- (2E)-4,4,4-Trifluoro-3-oxo-N-[4-(trifluoromethyl)phenyl]-2-{2-[4-(trifluoromethyl)phenyl]hydrazin-1-ylidene}butanamide (CAS 866131-03-5)
- 2-[N-(2,4-Dichloro-5-methoxyphenyl)methanesulfonamido]-N-[3-(trifluoromethyl)phenyl]acetamide (CAS 343374-18-5)
- 3-[2-(4-Bromophenoxy)ethyl]piperidinehydrochloride (CAS 1219982-83-8)
- Ethyl 6-chloro-4-((2-nitrobenzyl)sulfonyl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylate (CAS 866134-55-6)
- N-p-tolylformamide (CAS 3085-54-9)
- (1,4,7,10,13-Pentaoxacyclopentadecan-2-yl)methanol (CAS 75507-25-4)
- N-Nitroso Promethazine EP Impurity C (CAS 94511-44-1)
- (3-Morpholinocyclobutyl)methyl 4-methylbenzenesulfonate (CAS 2143460-06-2)
- 2,6-naphthyridine-3-carboxylic acid (CAS 1251103-01-1)
- (1-(Thiophen-3-ylmethyl)-1H-1,2,3-triazol-4-yl)methanol (CAS 1250742-10-9)
- 7-(1-(3,5-Dimethylphenoxy)ethyl)-[1,2,4]triazolo[1,5-a]pyrimidin-2-amine (CAS 306979-66-8)
- Semaglutide impurity 89 (CAS CATO-C4X-222689)
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