5-(4-Fluorophenyl)-2-isopropyl-1,2-dihydro-3h-pyrazole-3-thione CAS 1235440-76-2
| CAS No. | 1235440-76-2 |
| Molecular Formula | C12H13FN2S |
| Molecular Weight | 236.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-(4-Fluorophenyl)-2-isopropyl-1,2-dihydro-3h-pyrazole-3-thione (CAS 1235440-76-2), a certified reference material (molecular formula C12H13FN2S, MW 236.31 g/mol) for analytical method development and quality control.
5-(4-Fluorophenyl)-2-isopropyl-1,2-dihydro-3h-pyrazole-3-thione (C12H13FN2S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C12H13FN2S |
| Molecular Weight | 236.31 g/mol |
| 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.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Fluorophenyl Standards
- 1-(2-Fluorophenyl)-4,4-dimethyl-1,4-dihydropyrimidine-2-thiol (CAS 1142212-83-6)
- 1-(4-Fluorophenyl)-4,4-dimethyl-1,4-dihydropyrimidine-2-thiol (CAS 1142212-85-8)
- 2-[2-(4-Fluorophenyl)-4-methyl-1,3-thiazol-5-yl]ethan-1-amine (CAS 1206976-44-4)
- 1-[2-(4-fluorophenyl)-4-methyl-1,3-thiazol-5-yl]ethan-1-amine (CAS 1250123-55-7)
- 4-(4-fluorophenyl)-5-propylthiazol-2-amine (CAS 915923-78-3)
- 2-(4-fluorophenyl)-5-(trimethylsilyl)-1,3,4-oxadiazole (CAS 890405-12-6)
- 2-(4-Fluorophenyl)-2-(piperidin-1-yl)acetamide (CAS 1119450-95-1)
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Recommended Standards
- 2-(4-Isopropoxyphenyl)-3-methylbutanoic acid (CAS 1225999-75-6)
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- (5-amino-2-fluorophenyl)methanesulfonyl fluoride (CAS 2059971-41-2)
- 1H-Benzo[d][1,2,3]triazole-4-carbaldehyde (CAS 125873-34-9)
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