1-Ethyl-5-hydrazinyl-1H-pyrazole dihydrochloride CAS 1855898-89-3
| CAS No. | 1855898-89-3 |
| Molecular Formula | C5H10N4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Ethyl-5-hydrazinyl-1H-pyrazole dihydrochloride is closely related to a nitrile group, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 1-Ethyl-5-hydrazinyl-1H-pyrazole dihydrochloride (CAS 1855898-89-3), a certified reference material (molecular formula C5H10N4HCl, MW 162.62 g/mol) for analytical method development and quality control.
Structurally, 1-Ethyl-5-hydrazinyl-1H-pyrazole dihydrochloride (C5H10N4HCl) contains a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 162.62 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), 1-Ethyl-5-hydrazinyl-1H-pyrazole dihydrochloride 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 | C5H10N4 2*HCl |
| Molecular Weight | 162.62 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Ethyl Standards
- 3-Hydrazinyl-5-phenylpyridazine (CAS 100079-09-2)
- 2-Hydrazinyl-4-(1-methyl-1H-pyrazol-4-yl)-6-(trifluoromethyl)pyrimidine (CAS 1004644-02-3)
- 2-Hydrazinyl-4-(1-methyl-1h-pyrazol-3-yl)pyrimidine (CAS 1006322-90-2)
- Ethyl 4-hydrazinyl-2-methylpyrimidine-5-carboxylate (CAS 101251-42-7)
- 2-hydrazinyl-6-methoxy-3-methylquinoline (CAS 1017360-52-9)
- 2-Hydrazinyl-5-methyl-4-(thiophen-2-yl)pyrimidine (CAS 1019257-99-8)
- 5-hydrazinyl-2-nitropyridine (CAS 1019632-12-2)
- 3-(2-Hydrazinyl-2-oxoethoxy)-N-phenyl-2-naphthamide (CAS 1020241-65-9)
Recommended Standards
- 2-Ethyl-7-methyl-5-nitro-1,3-benzoxazole (CAS 1441050-03-8)
- Methyl 2-(1-ethyl-6-oxo-1,6-dihydropyrimidin-4-yl)acetate (CAS 1713714-06-7)
- 2-(1-methyl-5-oxo-4H-pyrazol-3-yl)acetic acid (CAS 1094269-98-3)
- 4-(5-Mercapto-1,3,4-oxadiazol-2-yl)benzonitrile (CAS 203268-78-4)
- 5-(2-Aminopyrimidin-4-yl)thiophene-2-carbonitrile (CAS 913322-72-2)
- 3-(3,5-Dimethylbenzenesulfonyl)-6,7-difluoro-1-propyl-1,4-dihydroquinolin-4-one (CAS 1547050-53-2)
- 2-(4-(tert-Butoxycarbonyl)piperazin-1-yl)-2-methylpropanoic acid (CAS 1240619-73-1)
- Ceftopram lmpurity 40 (CAS CATO-C4X-135840)
- 4,5-Dibutyl-1-{4-methyl-5H,6H,7H-cyclopenta[d]pyrimidin-2-yl}-1H-1,2,3-triazole (CAS 860785-42-8)
- Liraglutide-d8 Tetratrifluoroacetate (CAS 204656-20-2 (non-labelled, free base))
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