| CAS No. | 1904-24-1 |
| Molecular Formula | C5H13N3 |
| Molecular Weight | 115.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Owing to an organic framework, 5-Amino-3-ethyl-1<I>H</I>-pyrazole is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 115.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 5-Amino-3-ethyl-1<I>H</I>-pyrazole (CAS 1904-24-1), a certified reference material (molecular formula C5H13N3, MW 115.18 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-Amino-3-ethyl-1<I>H</I>-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.
| Molecular Formula | C5H13N3 |
| Molecular Weight | 115.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 3 |