5-[(1E)-1-{2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]hydrazin-1-ylidene}ethyl]-3-(4-fluorophenyl)-2,1-benzoxazole CAS 338772-44-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 338772-44-4 |
| Molecular Formula | C21H13ClF4N4O |
| Molecular Weight | 448.80 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]-3-(4-fluorophenyl)-2,1-benzoxazole (CAS 338772-44-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H13ClF4N4O. Molecular weight: 448.80 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H13ClF4N4O |
| Molecular Weight | 448.80 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 4 |
Related E Standards
- 1-{4-[(1Z)-1-{2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]hydrazin-1-ylidene}ethyl]phenyl}-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile (CAS 321432-43-3)
- 2-((2-Chloro-6-fluorobenzyl)thio)-5-(1-methyl-3-(trifluoromethyl)-1H-thieno[2,3-c]pyrazol-5-yl)-1,3,4-oxadiazole (CAS 339103-41-2)
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Recommended Standards
- Chlorobis(dimethylglyoximato)[4-(dimethylamino)pyridine]cobalt(III) (CAS 483979-48-2)
- Ethyl N-[(2E)-2-({4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}methylidene)-3-oxobutanoyl]carbamate (CAS 339103-90-1)
- Dipentamethylenethiuram hexasulfide(DPTT) (CAS 971-15-3)
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