4-(2,4-Difluorophenyl)-1H-1,2,4-triazol-5(4H)-one CAS 155431-40-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 155431-40-6 |
| Molecular Formula | C8H5F2N3O |
| Molecular Weight | 197.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(2,4-Difluorophenyl)-1H-1,2,4-triazol-5(4H)-one (CAS 155431-40-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H5F2N3O. Molecular weight: 197.14 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H5F2N3O |
| Molecular Weight | 197.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Difluorophenyl Standards
- 5-(3,4-difluorophenyl)-1,3,4-oxadiazol-2-amine (CAS 1016711-54-8)
- 5-(2,4-Difluorophenyl)-1,3,4-oxadiazol-2-amine (CAS 1016713-92-0)
- 3-(2,6-Difluorophenyl)-5-hydroxyisoxazole (CAS 1188023-03-1)
- 3-(2,4-Difluorophenyl)-5-hydroxyisoxazole (CAS 1188090-66-5)
- 3-(3,5-Difluorophenyl)-5-hydroxyisoxazole (CAS 1188168-80-0)
- 3-(3,4-Difluorophenyl)-5-hydroxyisoxazole (CAS 1354937-46-4)
- 3-(2,6-difluorophenyl)-1,2,4-oxadiazol-5-amine (CAS 1504957-58-7)
- 3-(2,5-Difluorophenyl)-5-hydroxyisoxazole (CAS 1593865-40-7)
Recommended Standards
- 3,5-Difluoro-1H-indole-2-carboxylic acid (CAS 1553990-37-6)
- 2-(2,2-Difluoro-2H-1,3-benzodioxol-4-yl)acetonitrile (CAS 157437-24-6)
- (6-Nitrobenzo[d][1,3]dioxol-5-yl)methanol (CAS 15341-08-9)
- 3-(Chloromethyl)-6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazole (CAS 1279217-29-6)
- 5-Phenyl-2-(m-tolyl)pyrazolo[1,5-a]pyrimidin-7-ol (CAS 331422-45-8)
- 5-(Adamantan-1-ylmethyl)-4-cyclopropyl-4h-1,2,4-triazole-3-thiol (CAS 828274-06-2)
- 2-(m-Tolyl)piperazine (CAS 776269-51-3)
- (S)-2-(tert-butoxycarbonyl)-2-azabicyclo[2.2.2]Octane-3-carboxylic acid (CAS 109523-16-2)
- N-methyl-1-(1-(2-methylallyl)-1H-pyrazol-4-yl)methanamine (CAS 1512269-94-1)
- Semaglutide impurity 267 (CAS CATO-C4X-2226267)
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