n-[3-(4-tert-butylphenyl)-1-phenyl-1h-pyrazol-5-yl]-2-chloroacetamide CAS 882227-09-0
| CAS No. | 882227-09-0 |
| Molecular Formula | C21H22ClN3O |
| Molecular Weight | 367.87 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including n-[3-(4-tert-butylphenyl)-1-phenyl-1h-pyrazol-5-yl]-2-chloroacetamide.
n-[3-(4-tert-butylphenyl)-1-phenyl-1h-pyrazol-5-yl]-2-chloroacetamide (CAS 882227-09-0), molecular formula C21H22ClN3O and molecular weight 367.87 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H22ClN3O, n-[3-(4-tert-butylphenyl)-1-phenyl-1h-pyrazol-5-yl]-2-chloroacetamide contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 367.87 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C21H22ClN3O |
| Molecular Weight | 367.87 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- 5-Chloro-1,2-diphenyl-4-(piperidin-1-ylmethyl)-1H-pyrazol-3(2H)-one (CAS 37585-42-5)
- Pentyl 6-chloro-2-(p-tolyl)quinoline-4-carboxylate (CAS 355421-10-2)
- 4-Chloro-N-(6-methyl-4-oxothiochroman-3-yl)benzenesulfonamide (CAS 866144-19-6)
- tert-Butyl (1-(3-(6-chloropyridin-3-yl)-2-methyl-3-oxopropyl)pyrrolidin-3-yl)carbamate (CAS 886364-19-8)
- (Z)-{[2-(4-chlorophenyl)cyclopropyl](4-methoxyphenyl)methylidene}[(2,4-dichlorophenyl)methoxy]amine (CAS 338962-87-1)
- Ethyl 3-chloro-2,4-difluorobenzoate (CAS 1097886-66-2)
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- 5-chloro-1,3-dimethyl-pyrazolo[4,3-d]pyrimidine (CAS 1471261-55-8)
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- N-Octanoyl-DL-homoserine lactone (CAS 106983-30-6)
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