3-Hydrazinyl-1H-pyrazole hydrochloride CAS 727993-51-3
| CAS No. | 727993-51-3 |
| Molecular Formula | C3H6N4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Hydrazinyl-1H-pyrazole hydrochloride is closely related to a nitrile group, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 3-Hydrazinyl-1H-pyrazole hydrochloride (CAS 727993-51-3), a certified reference material (molecular formula C3H6N4HCl, MW 134.57 g/mol) for analytical method development and quality control.
Structurally, 3-Hydrazinyl-1H-pyrazole hydrochloride (C3H6N4HCl) 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 134.57 g/mol, it falls into the low-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C3H6N4 HCl |
| Molecular Weight | 134.57 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.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Hydrazinyl 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
- N-(2-(ethylamino)ethyl)cyclopropanecarboxamide hydrochloride (CAS 1955520-14-5)
- 2-(3-Methyl-1H-1,2,4-triazol-5-yl)propan-2-ol (CAS 101822-15-5)
- 1-(3-Aminoquinolin-6-yl)ethan-1-one (CAS 1934626-74-0)
- Methyl 2-imino-5-phenyl-2,3-dihydrothiazolo[4,5-b]pyridine-7-carboxylate (CAS 1092325-50-2)
- 1-(2-Chlorophenyl)-3-(3-chlorophenyl)propan-1-one (CAS 898787-22-9)
- 4-Cyclopropyl-n,6-dimethylpyrimidin-2-amine (CAS 1342384-26-2)
- 5-Bromo-N-(2-hydroxypropyl)nicotinamide (CAS 1153021-15-8)
- 1-(2-Chloro-4-(difluoromethoxy)phenyl)propan-1-one (CAS 1261776-30-0)
- 3-(5-Chloro-2-nitrophenoxy)pyrrolidine (CAS 1250289-31-6)
- Des-Gln19-Tirzepatide (CAS CATO-CPTD788954)
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