5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-amine CAS 1936635-98-1
| CAS No. | 1936635-98-1 |
| Molecular Formula | C5H5ClF3N3 |
| Molecular Weight | 199.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C5H5ClF3N3, 5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-amine contains a nitrile group, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 199.56 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-amine (CAS 1936635-98-1), molecular formula C5H5ClF3N3 and molecular weight 199.56 g/mol, is a CATO reference standard with documented purity and traceability.
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.
CATO manufactures 5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-amine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H5ClF3N3 |
| Molecular Weight | 199.56 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1996 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related chloro Standards
- 4-Chloro-1-(2,2,2-trifluoroethyl)-1h-pyrazol-3-amine (CAS 1006448-56-1)
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Recommended Standards
- 5-Chloro-4-nitrobenzo[c][1,2,5]oxadiazole (CAS 5714-17-0)
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- 4-Fluorobenzo[d]oxazole-2-carbonyl chloride (CAS 1803856-54-3)
- 4-Chloro-5-nitrobenzo[c][1,2,5]oxadiazole (CAS 22250-51-7)
- 3,3-Dimethyl-1-(5-methylthiophen-2-yl)butan-1-amine (CAS 1020948-05-3)
- 2-Chloro-1-{4-[(3-chlorophenyl)methyl]piperazin-1-yl}ethan-1-one hydrochloride (CAS 1171964-76-3)
- 5-(1-Methyl-1h-pyrazol-4-yl)-1,3,4-oxadiazol-2-amine (CAS 1152906-12-1)
- 1-(1,1-Dioxido-2,3-dihydrothiophen-3-yl)urea (CAS 40226-94-6)
- 2-(4-Cyanobenzoyl)oxazole (CAS 898759-91-6)
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- Ethyl (E)-3-cyclopropylbut-2-enoate (CAS 21014-28-8)
- Fmoc-Gln(Dod)-OH (CAS 113534-17-1)
- Hexapeptide-11 (CAS 100684-36-4)
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