4-Iodo-1-isobutyl-5-methyl-1H-pyrazole CAS 1354705-57-9
| CAS No. | 1354705-57-9 |
| Molecular Formula | C8H13IN2 |
| Molecular Weight | 264.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-Iodo-1-isobutyl-5-methyl-1H-pyrazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
4-Iodo-1-isobutyl-5-methyl-1H-pyrazole (CAS 1354705-57-9) is a high-purity analytical reference standard with the molecular formula C8H13IN2 and a molecular weight of 264.11 g/mol.
The molecular framework of 4-Iodo-1-isobutyl-5-methyl-1H-pyrazole (C8H13IN2) is characterized by a nitrile group, iodine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C8H13IN2 |
| Molecular Weight | 264.11 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
Related Iodo Standards
- 5-Ethyl-4-iodo-1-isopropyl-1H-pyrazole (CAS 1354705-29-5)
- 1-Butyl-4-iodo-5-methyl-1H-pyrazole (CAS 1354705-47-7)
- 4-Iodo-3,5-dimethyl-1-propyl-1h-pyrazole (CAS 1354705-50-2)
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- 4-Iodo-1-isopentylpyrazole (CAS 1379762-29-4)
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Recommended Standards
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