5-(4-Chlorophenoxy)-N-(2,4-difluorophenyl)-1,3-dimethyl-1H-pyrazole-4-carboxamide CAS 303997-83-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 303997-83-3 |
| Molecular Formula | C18H14ClF2N3O2 |
| Molecular Weight | 377.77 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-(4-Chlorophenoxy)-N-(2,4-difluorophenyl)-1,3-dimethyl-1H-pyrazole-4-carboxamide (CAS 303997-83-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C18H14ClF2N3O2. Molecular weight: 377.77 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C18H14ClF2N3O2 |
| Molecular Weight | 377.77 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlorophenoxy Standards
- 5-(3-Chlorophenoxy)-N-(2,4-difluorophenyl)-1,3-dimethyl-1H-pyrazole-4-carboxamide (CAS 477709-51-6)
- 2-(((4-(4-Chlorophenoxy)phenyl)amino)methyl)isoindoline-1,3-dione (CAS 74614-53-2)
- 5-(4-Chlorophenoxy)-3-(3-(trifluoromethyl)phenyl)-1,2,4-triazine-6-carbonitrile (CAS 921620-32-8)
- 4-((4-(4-Chlorophenoxy)phenylthio)methyl)tetrahydro-2H-pyran-4-carboxylic acid (CAS 193021-78-2)
- 2-(4-Chlorophenoxy)-N-((1-(thiophen-2-ylmethyl)piperidin-4-yl)methyl)acetamide (CAS 954022-34-5)
- N-[2-(4-Chlorophenoxy)propyl]-4-(heptyloxy)aniline (CAS 1040689-86-8)
- 3-(4-Chlorophenoxy)-2-phenylquinoline-4-carboxylic acid (CAS 338400-74-1)
- Ethyl 4-((2-(4-chlorophenoxy)benzylidene)amino)benzoate (CAS 477862-33-2)
Recommended Standards
- N-(2-chlorophenyl)-2-((3-(trifluoromethyl)phenyl)sulfonyl)acetamide (CAS 339107-39-0)
- 2-((3-Chlorophenyl)sulfonyl)-N-(3-(trifluoromethyl)phenyl)acetamide (CAS 339107-31-2)
- 2-Phenylamino-6-chloropurine-9-β-D-riboside (CAS 117325-41-4)
- 25-Desacetyl Rifapentine (CAS 79039-56-8)
- 1-[(3-bromophenyl)methyl]pyrrolidin-3-amine (CAS 939759-91-8)
- 1-(2-Amino-5-chlorophenyl)-2-phenylethan-1-one (CAS 1685-25-2)
- 4-(2-Aminoethyl)-6-chloro-7-hydroxy-2H-1-benzopyran-2-one 2,2,2-trifluoroacetate (CAS 1234064-11-9)
- Levofloxacin Impurity 62 (CAS CATO-C4X-137162)
- [4-[[5-Fluoro-4-[2-methyl-1-(1-methylethyl)-1H-imidazol-5-ly]-2-pyrimidinyl]amino]phenyl][(3S)-3-(methylamino)-1-pyrrolidinyl]methanone (CAS 924641-59-8)
- Tirzepatide Impurity 57 (CAS CATO-C4X-324057)
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