4-Chloro-1-ethyl-1,2-dihydro-3h-pyrazol-3-imine CAS 1006333-30-7
| CAS No. | 1006333-30-7 |
| Molecular Formula | C5H8ClN3 |
| Molecular Weight | 145.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Chloro-1-ethyl-1,2-dihydro-3h-pyrazol-3-imine.
CATO supplies 4-Chloro-1-ethyl-1,2-dihydro-3h-pyrazol-3-imine (CAS 1006333-30-7), a certified reference material (molecular formula C5H8ClN3, MW 145.59 g/mol) for analytical method development and quality control.
The molecular framework of 4-Chloro-1-ethyl-1,2-dihydro-3h-pyrazol-3-imine (C5H8ClN3) is characterized by a nitrile group, chlorine 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. 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).
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.
As a certified reference material (CRM), 4-Chloro-1-ethyl-1,2-dihydro-3h-pyrazol-3-imine 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.
Physical & Chemical Properties
| Molecular Formula | C5H8ClN3 |
| Molecular Weight | 145.59 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- (4-Chloro-1-methyl-1h-pyrazol-5-yl)methanamine (CAS 1001500-75-9)
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- 4-Chloro-5-ethyl-1H-pyrazol-3-amine (CAS 110580-33-1)
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Recommended Standards
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- Semaglutide impurity 100 (CAS CATO-C4X-2226100)
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