2-(4-amino-1H-pyrazol-1-yl)acetohydrazide hydrochloride,HCl CAS 1171032-42-0
| CAS No. | 1171032-42-0 |
| Molecular Formula | C5H9N5O |
| Molecular Weight | 155.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(4-amino-1H-pyrazol-1-yl)acetohydrazide hydrochloride,HCl 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.
2-(4-amino-1H-pyrazol-1-yl)acetohydrazide hydrochloride,HCl (CAS 1171032-42-0) is a high-purity analytical reference standard with the molecular formula C5H9N5O and a molecular weight of 155.16 g/mol.
Owing to an amide group, a hydroxyl group, an ether linkage, 2-(4-amino-1H-pyrazol-1-yl)acetohydrazide hydrochloride,HCl is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 155.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H9N5O |
| Molecular Weight | 155.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 5 |
Related amino Standards
- 4-amino-1-methyl-1H-pyrazole-5-carbohydrazide (CAS 1002033-39-7)
- 3-Amino-1-methyl-1H-pyrazole-4-carbohydrazide (CAS 114936-29-7)
- 2-(3-amino-1,2,4-triazol-1-yl)-N-methyl-acetamide (CAS 1182757-96-5)
- 5-Amino-N,N-dimethyl-4H-1,2,4-triazole-3-carboxamide (CAS 1228552-93-9)
- 4-Amino-1-methyl-6-(methylamino)-1,3,5-triazin-2(1H)-one (CAS 127480-39-1)
- 4-Amino-5-methyl-6-(methylamino)-1,3,5-triazin-2(5H)-one (CAS 127480-40-4)
- 3-(5-Amino-1H-1,2,4-triazol-3-yl)propanamide (CAS 1279219-40-7)
- 1338494-97-5 2-(3-Amino-1H-pyrazol-1-yl)acetohydrazide MFCD20441349 (CAS 1338494-97-5)
Recommended Standards
- 2,6-Naphthyridine-1-carbonitrile (CAS 1159829-94-3)
- 2,7-Naphthyridine-1-carbonitrile (CAS 1159829-88-5)
- 1,7-Naphthyridine-8-carbonitrile (CAS 1159827-18-5)
- Quinazoline-5-carbonitrile (CAS 1231761-02-6)
- tert-Butyl (3-(2-methyl-4-oxobutan-2-yl)phenyl)carbamate (CAS 2744250-19-7)
- Furo[3,2-b]pyridine-3-carboxamide (CAS 112372-22-2)
- Methyl 2-(benzoyloxy)benzoate (CAS 610-60-6)
- N-((4-bromothiophen-2-yl)methyl)-1H-indazol-5-amine (CAS 864422-86-6)
- (1R,2R,3S,5S)-3-(3,4-Dichlorophenyl)-2-(ethoxymethyl)-8-methyl-8-azabicyclo[3.2.1]octane 2-hydroxypropane-1,2,3-tricarboxylate (CAS 861205-83-6)
- 3-(2-Chloroacetyl)-1-cyclopentylurea (CAS 565169-46-2)
- (5-Bromo-1H-1,2,4-triazol-3-yl)methanol (CAS 23164-67-2)
- 5-(Tert-butoxycarbonyl)-1-oxo-2,5-diazaspiro[3.4]Octane-7-carboxylic acid (CAS 2306263-19-2)
- 1-(1H-Indol-2-yl)-2-iodoethanone (CAS 33588-59-9)
- Semaglutide impurity 271 (CAS CATO-C4X-2226271)
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