1-[(2-chloro-4-fluorophenyl)methyl]-3,5-dimethyl-1h-pyrazol-4-amine CAS 925663-04-3
| CAS No. | 925663-04-3 |
| Molecular Formula | C12H13ClFN3 |
| Molecular Weight | 253.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-[(2-chloro-4-fluorophenyl)methyl]-3,5-dimethyl-1h-pyrazol-4-amine (CAS 925663-04-3), molecular formula C12H13ClFN3 and molecular weight 253.70 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-[(2-chloro-4-fluorophenyl)methyl]-3,5-dimethyl-1h-pyrazol-4-amine (C12H13ClFN3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 253.70 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.
As a certified reference material (CRM), 1-[(2-chloro-4-fluorophenyl)methyl]-3,5-dimethyl-1h-pyrazol-4-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 | C12H13ClFN3 |
| Molecular Weight | 253.70 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related chloro Standards
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- 1-[(2-chloro-6-fluorophenyl)methyl]-3,5-dimethyl-1h-pyrazol-4-amine (CAS 512809-93-7)
- 1-Chloro-4-(2-thioxobenzo[d]oxazol-3(2H)-yl)but-3-en-2-one (CAS 88235-13-6)
- 2-Chloro-5-(phenylsulfonyl)pyridine (CAS 877868-60-5)
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Recommended Standards
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- 2-((7-Chloroquinolin-4-yl)thio)acetic acid (CAS 5429-07-2)
- 3-Amino-5-(4-chlorophenyl)-2-thiophenecarboxylic Acid (CAS 187949-86-6)
- 1-(4-Hydroxypiperidin-1-yl)butan-1-one (CAS 202647-18-5)
- 1-Cyclohexyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 135906-00-2)
- 7-Piperazin-1-yl[1,2,4]triazolo[4,3-a]pyrimidine (CAS 1417358-37-2)
- 2-Undecyl-1H-pyrrole (CAS 61930-40-3)
- 4-(4-Bromo-2-difluoromethoxyphenyl)-thiosemicarbazide (CAS 1303993-91-0)
- (6-(Trifluoromethyl)tetrahydro-2H-pyran-3-yl)methanol (CAS 1637310-76-9)
- 4-Ethylcyclohexanecarboxylic Acid (cis- and trans- mixture) (CAS 91328-77-7)
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- 4-Acetyl-N-(furan-2-ylmethyl)benzenesulfonamide (CAS 736948-74-6)
- Tau Peptide (307-321) trifluoroacetate salt (CAS 330456-50-3)
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