(5-(tert-Butyl)-2-hydroxyphenyl)(1-phenyl-1H-pyrazol-4-yl)methanone CAS 288844-46-2
| CAS No. | 288844-46-2 |
| Molecular Formula | C20H20N2O2 |
| Molecular Weight | 320.39 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 (5-(tert-Butyl)-2-hydroxyphenyl)(1-phenyl-1H-pyrazol-4-yl)methanone.
CATO supplies (5-(tert-Butyl)-2-hydroxyphenyl)(1-phenyl-1H-pyrazol-4-yl)methanone (CAS 288844-46-2), a certified reference material (molecular formula C20H20N2O2, MW 320.39 g/mol) for analytical method development and quality control.
Structurally, (5-(tert-Butyl)-2-hydroxyphenyl)(1-phenyl-1H-pyrazol-4-yl)methanone (C20H20N2O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 320.39 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C20H20N2O2 |
| Molecular Weight | 320.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Recommended Standards
- (4S,4′S)-2,2′-Ethylidenebis[4,5-dihydro-4-phenyloxazole] (CAS 862605-37-6)
- (9H-Fluoren-9-yl)methyl 2,5-diazabicyclo[2.2.1]heptane-2-carboxylate (CAS 845866-60-6)
- (4R,4′R)-2,2′-Ethylidenebis[4,5-dihydro-4-phenyloxazole] (CAS 644994-50-3)
- (E)-2-benzyl-6-(4-methoxystyryl)-4,5-dihydropyridazin-3(2H)-one (CAS 337923-00-9)
- 1-[2-(ethylsulfanyl)phenyl]ethan-1-one (CAS 70201-55-7)
- 4-chloro-6-cyclopentyl-1,3,5-triazin-2-amine (CAS 1139245-04-7)
- Ethyl 2-(2-((4-methylbenzyl)thio)-4,5-diphenyl-1H-imidazol-1-yl)acetate (CAS 339278-02-3)
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- 1-(3-Ethoxypyridin-2-yl)ethanone (CAS 81376-88-7)
- 3-Bromo-N-(1-(ethylamino)-1-oxopropan-2-yl)benzamide (CAS 1096428-22-6)
- ([13C6]Leu14)-Glucagon (1-29) (human, rat, porcine) trifluoroacetate salt (CAS 1802078-39-2)
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