3-Chloro-1-ethyl-4-((3-iodo-1-methyl-1H-pyrazol-4-yl)methyl)-1H-pyrazole CAS 2739869-33-9
| CAS No. | 2739869-33-9 |
| Molecular Formula | C10H12ClIN4 |
| Molecular Weight | 350.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Chloro-1-ethyl-4-((3-iodo-1-methyl-1H-pyrazol-4-yl)methyl)-1H-pyrazole (CAS 2739869-33-9), molecular formula C10H12ClIN4 and molecular weight 350.59 g/mol, is a CATO reference standard with documented purity and traceability.
3-Chloro-1-ethyl-4-((3-iodo-1-methyl-1H-pyrazol-4-yl)methyl)-1H-pyrazole (C10H12ClIN4) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/iodine 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C10H12ClIN4 |
| Molecular Weight | 350.59 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 98% |
| Storage | Store at 2-8°C, 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 4 |
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- 2-(Cyclopentyloxy)-5-fluoroaniline (CAS 1019558-38-3)
- 5,6,7,8-Tetrahydroquinolin-2(1H)-one (CAS 54802-19-6)
- 2-(4-Fluorophenyl)-5-hydroxy-6-methoxyquinolin-4(1H)-one (CAS 1256037-42-9)
- 2-Bromo-1-(3-bromopropyl)-4-fluorobenzene (CAS 1057678-47-3)
- ethyl 6-(3-azidoazetidin-1-yl)pyridine-3-carboxylate (CAS 1803589-21-0)
- 6-Thioxo-1,6-dihydropyridine-3-carboxylic acid (CAS 17624-07-6)
- Semaglutide impurity 104(Fmoc-D-His-Aib) (CAS 2171211-18-8)
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