5-(difluoromethyl)-1-(2-methylphenyl)-1H-pyrazol-4-amine hydrochloride CAS 1909320-27-9
| CAS No. | 1909320-27-9 |
| Molecular Formula | C11H11F2N3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 5-(difluoromethyl)-1-(2-methylphenyl)-1H-pyrazol-4-amine hydrochloride (C11H11F2N3HCl) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 259.68 g/mol, it falls into the medium-molecular-weight range. 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-(difluoromethyl)-1-(2-methylphenyl)-1H-pyrazol-4-amine hydrochloride (CAS 1909320-27-9), molecular formula C11H11F2N3HCl and molecular weight 259.68 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.
As a certified reference material (CRM), 5-(difluoromethyl)-1-(2-methylphenyl)-1H-pyrazol-4-amine hydrochloride 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 | C11H11F2N3 HCl |
| Molecular Weight | 259.68 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related difluoromethyl Standards
- 2-(2-(Difluoromethyl)phenyl)acetic acid (CAS 1000517-62-3)
- 2-[4-(difluoromethyl)phenyl]acetic acid (CAS 1000524-74-2)
- 2-(4-(Difluoromethyl)phenyl)acetonitrile (CAS 1000529-64-5)
- 2-(3-(Difluoromethyl)phenyl)acetonitrile (CAS 1000529-78-1)
- 2-(4-(Difluoromethyl)phenyl)ethan-1-amine (CAS 1000539-08-1)
- 2-(3-(Difluoromethyl)phenyl)acetic acid (CAS 1000547-15-8)
- 2-(2-(Difluoromethyl)phenyl)acetonitrile (CAS 1000556-48-8)
- 2-(2-(Difluoromethyl)phenyl)ethanamine (CAS 1000559-85-2)
Recommended Standards
- (3R,4S)-Methyl 4-(p-tolyl)pyrrolidine-3-carboxylate (CAS 1821732-83-5)
- 2-(Benzo[d]thiazol-2-yl)ethan-1-amine dihydrochloride (CAS 152482-94-5)
- Cinnoline-8-carboxylic acid (CAS 1896374-95-0)
- (3-(Thiazol-2-yl)phenyl)methanol (CAS 184847-97-0)
- 2-Amino-6-fluoro-3-iodobenzoic acid (CAS 2092769-85-0)
- Tert-butyl (R)-3-(2-aminoethyl)morpholine-4-carboxylate (CAS 2165569-04-8)
- 2-(4-Ethoxyphenyl)acetimidamide (CAS 58125-02-3)
- 2-Chloro-5-(1H-tetrazol-1-yl)pyridine (CAS 1428233-44-6)
- Methyl 3-(3-(dimethylamino)propoxy)benzoate (CAS 921938-75-2)
- Tirzepatide Impurity 12 (CAS CATO-C4X-324012)
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