5-[(1E)-1-{2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]hydrazin-1-ylidene}ethyl]-1-(4-chlorophenyl)-1,2,3,4-tetrahydropyrimidine-2,4-dione CAS 321432-27-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 321432-27-3 |
| Molecular Formula | C18H12Cl2F3N5O2 |
| Molecular Weight | 458.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-[(1E)-1-{2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]hydrazin-1-ylidene}ethyl]-1-(4-chlorophenyl)-1,2,3,4-tetrahydropyrimidine-2,4-dione (CAS 321432-27-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H12Cl2F3N5O2. Molecular weight: 458.22 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H12Cl2F3N5O2 |
| Molecular Weight | 458.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 5 |
Related E Standards
- (2E)-2-{1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-indol-3-yl}-3-(2-chlorophenyl)prop-2-enenitrile (CAS 321433-37-8)
- (2E)-2-{1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-indol-3-yl}-3-(4-chlorophenyl)prop-2-enenitrile (CAS 321433-36-7)
- 4-Chloro-N-{[5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]methyl}-N-(4-methoxyphenyl)benzamide (CAS 956184-23-9)
- 3-(2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]sulfanyl}phenyl)-1-(4-chlorophenyl)urea (CAS 338773-29-8)
- 1-((5-Chloro-1,3-dimethyl-1H-pyrazol-4-yl)sulfonyl)-4-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)piperazine (CAS 318247-34-6)
- Ethyl 3-(2-chloro-6-fluorophenyl)-2-[3-(4-chlorophenyl)pyrazolo[1,5-a]pyrimidin-7-yl]propanoate (CAS 477860-54-1)
- 2-(2-(3-(2-(7-Chloro-2-quinolinyl)-ethenylphenyl)-3-hydroxypropyl)phenyl)-2-propanol (CAS 142569-70-8)
- 4-Chloro-2-methylbenzyl 4-(3-oxo-3-(2-oxo-2,3-dihydrobenzo[d]oxazol-6-yl)propyl)piperazine-1-carboxylate (CAS 1144035-27-7)
Recommended Standards
- 9,9-Bis(trifluoromethyl)-2,3,6,7-xanthenetetracarboxylic dianhydride (CAS 139162-14-4)
- 2,8-Dibromoindeno[1,2-b]fluorene-6,12-dione (CAS 853234-57-8)
- 7-(Chlorodifluoromethyl)-3-(4-chlorophenyl)-5-(4-(trifluoromethyl)phenyl)pyrazolo[1,5-a]pyrimidine (CAS 439097-30-0)
- N,N-Dibutyloctadec-9-enamide (CAS 56630-41-2)
- 2-((Tert-butoxycarbonyl)amino)-5,5,5-trifluoro-4-methylpentanoic acid (CAS 409333-67-1)
- 2-(Furan-2-ylmethyl)-3,5-dimethylpyrazine (CAS 155272-50-7)
- 1-Isopentylpiperidin-4-ol (CAS 67817-54-3)
- Tetrabenazine Impurity C49 (CAS 1381929-92-5)
- 1-Bromo-3-methylbutane (CAS 107-82-4)
- Brain Injury Derived Neurotrophic Peptide (H-3914.0001) (CAS 148330-12-5)
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