4-Chloro-1H-pyrazol-1-amine CAS 3994-41-0
| CAS No. | 3994-41-0 |
| Molecular Formula | C3H4ClN3 |
| Molecular Weight | 117.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-Chloro-1H-pyrazol-1-amine 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.
CATO supplies 4-Chloro-1H-pyrazol-1-amine (CAS 3994-41-0), a certified reference material (molecular formula C3H4ClN3, MW 117.54 g/mol) for analytical method development and quality control.
Owing to a nitrile group, chlorine substitution, 4-Chloro-1H-pyrazol-1-amine is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 117.54 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.
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 | C3H4ClN3 |
| Molecular Weight | 117.54 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 | 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.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 3-Chloro-1H-pyrazol-4-amine (CAS 103286-54-0)
- 4-Chloro-2-methyl-2H-1,2,3-triazole (CAS 109299-74-3)
- 3-Chloro-5-methyl-1H-1,2,4-triazole (CAS 15285-15-1)
- 2-Chloro-N-cyanoacetimidamide (CAS 53737-87-4)
- 3-Chloro-1-methyl-1H-1,2,4-triazole (CAS 56616-92-3)
- 3-Chloro-4-methyl-4H-1,2,4-triazole (CAS 56616-87-6)
- 4-Chloro-1H-pyrazol-3-amine (CAS 54301-34-7)
- 4-Chloro-1-methyl-1H-1,2,3-triazole (CAS 856861-55-7)
Recommended Standards
- 5-(Chloromethyl)-1H-1,2,3-triazole (CAS 854937-88-5)
- 2-(chloromethyl)-2H-1,2,3-triazole (CAS 80199-90-2)
- 5-(Chloromethyl)-1H-1,2,4-triazole (CAS 55928-92-2)
- 1-Chloromethyl-1H-1,2,4-triazole (CAS 84387-62-2)
- 4-(2-Ethynyl-5-nitrofuran-3-yl)-6-methylpyrimidin-2-amine (CAS 72044-87-2)
- (4-(Difluoromethyl)-3-fluorophenyl)(pyridin-4-yl)methanone (CAS 1261588-69-5)
- 1-(8-Chloro-1-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]quinoxalin-4-yl)piperidin-4-one O-(4-chlorobenzyl) oxime (CAS 400089-12-5)
- (R)-2-Methylthiomorpholine 1,1-dioxide hydrochloride (CAS 2043769-71-5)
- [(1-Butyl-1H-imidazol-2-yl)methyl]methylaminedihydrochloride (CAS 1189898-55-2)
- 2-(Difluoromethyl)-6-methyl-5-(trifluoromethoxy)pyridine-3-acetonitrile (CAS 1361776-15-9)
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