1-(5-Methyl-1h-pyrazol-3-yl)guanidine hcl CAS 197356-56-2
| CAS No. | 197356-56-2 |
| Molecular Formula | C5H9N5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 1-(5-Methyl-1h-pyrazol-3-yl)guanidine hcl under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
1-(5-Methyl-1h-pyrazol-3-yl)guanidine hcl (CAS 197356-56-2), molecular formula C5H9N5HCl and molecular weight 175.62 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-(5-Methyl-1h-pyrazol-3-yl)guanidine hcl (C5H9N5HCl) 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.
Physical & Chemical Properties
| Molecular Formula | C5H9N5 HCl |
| Molecular Weight | 175.62 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.) | 2013 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
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- Semaglutide impurity 195 (CAS CATO-C4X-2226195)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com