5-(4-fluorophenyl)-2-methyl-pyrazol-3-amine CAS 126417-81-0
| CAS No. | 126417-81-0 |
| Molecular Formula | C10H20FN3 |
| Molecular Weight | 201.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(4-fluorophenyl)-2-methyl-pyrazol-3-amine (CAS 126417-81-0), molecular formula C10H20FN3 and molecular weight 201.28 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-(4-fluorophenyl)-2-methyl-pyrazol-3-amine (C10H20FN3) contains a nitrile group, fluorine 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 201.28 g/mol, it falls into the medium-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.
As a certified reference material (CRM), 5-(4-fluorophenyl)-2-methyl-pyrazol-3-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.
Physical & Chemical Properties
| Molecular Formula | C10H20FN3 |
| Molecular Weight | 201.28 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.) | 1993 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related fluorophenyl Standards
- [3-(4-fluorophenyl)-1H-pyrazol-4-yl]methanamine (CAS 1015846-17-9)
- N-(4-Fluorophenyl)(methylsulfanyl)carbothioamide (CAS 33692-68-1)
- 3-(4-Fluorophenyl)-4-methylaniline (CAS 1175834-34-0)
- 5-(3-Fluorophenyl)-2-methylaniline (CAS 1183439-66-8)
- 3-(3-Fluorophenyl)-4-methylaniline (CAS 1226084-37-2)
- (S)-(4-fluorophenyl)(phenyl)methanamine (CAS 1309674-17-6)
- (2-Fluorophenyl)(phenyl)methanamine (CAS 55095-24-4)
- (3-Fluorophenyl)(phenyl)methanamine (CAS 55095-25-5)
Recommended Standards
- 4-(cyclopentoxy)-3-fluoro-aniline (CAS 1039868-84-2)
- [(2R,3S)-2-(4-fluorophenyl)tetrahydrofuran-3-yl]methanamine (CAS 1808068-75-8)
- methyl 4-(trideuteriomethoxymethyl)norbornane-1-carboxylate (CAS 2813643-21-7)
- Ac-Lys-NHMe (CAS 6367-10-8)
- Ezatiostat (CAS 168682-53-9)
- H-Lys(Boc)-allyl ester · HCl (CAS 218938-64-8)
- Ethyl 7-(3,5-bis(trifluoromethyl)phenyl)-7-oxoheptanoate (CAS 898793-00-5)
- Methyl 3-bromo-5-(chlorosulfonyl)benzoate (CAS 668261-21-0)
- 2,4-Diphenyl-4-(prop-2-yn-1-yl)oxazol-5(4H)-one (CAS 95885-57-7)
- 8-(Ethylthio)-7-(2-hydroxy-2-(naphthalen-1-yloxy)ethyl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione (CAS 303970-49-2)
- 2-Benzyl 3-ethyl 2,8-diazaspiro[4.5]decane-2,3-dicarboxylate (CAS 1676006-33-9)
- 3-(4-Methoxyphenyl)-1,6,6-trimethyl-4,5,6,7-tetrahydro-1H-indazol-4-one (CAS 38127-65-0)
- Pyridoxine Impurity 22 (CAS 412940-03-5(free base))
- Semaglutide Impurity 121 X Sodium Salt (CAS CATO-C4X-2226121)
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