(3,5-Dimethyl-1H-pyrazol-1-yl)(3-((4-phenylpiperazin-1-yl)sulfonyl)thiophen-2-yl)methanone CAS 1171238-68-8
| CAS No. | 1171238-68-8 |
| Molecular Formula | C20H22N4O3S2 |
| Molecular Weight | 430.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3,5-Dimethyl-1H-pyrazol-1-yl)(3-((4-phenylpiperazin-1-yl)sulfonyl)thiophen-2-yl)methanone (CAS 1171238-68-8), molecular formula C20H22N4O3S2 and molecular weight 430.54 g/mol, is a CATO reference standard with documented purity and traceability.
(3,5-Dimethyl-1H-pyrazol-1-yl)(3-((4-phenylpiperazin-1-yl)sulfonyl)thiophen-2-yl)methanone (C20H22N4O3S2) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C20H22N4O3S2 |
| Molecular Weight | 430.54 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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.) | 1989 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Related Dimethyl Standards
- 2-(3-(2,5-Dimethyl-1H-pyrrol-1-yl)thiophen-2-yl)-6-(3-fluorobenzyl)-5,7-dimethylpyrazolo[1,5-a]pyrimidine (CAS 439110-97-1)
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Recommended Standards
- Triethyl 2,2',2''-(1,4,7,10-tetraazacyclododecane-1,4,7-triyl)triacetate (CAS 114873-52-8)
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- Benazepril EP Impurity D (CAS 112110-48-2)
- 9,10-Di(naphthalen-2-yl)anthracene (CAS 122648-99-1)
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- 1-(Bromomethyl)cyclohexan-1-ol (CAS 17299-10-4)
- 3-(cyclopentyloxy)-2-methylpropane-1-sulfonyl chloride (CAS 1343617-45-7)
- Methyl 2-(6-methylpyridin-2-yl)acetate (CAS 58532-56-2)
- 1-(Perfluorooctyl)docosane (CAS 137338-40-0)
- Cabergoline Impurity 49 (CAS CATO-C4X-27749)
- 7-Methoxy-2,3,4,5-tetrahydro-1H-benzo[d]azepine hydrochloride (CAS 17639-46-2)
- Ethyl 5-bromo-2-cyano-3-iodobenzoate (CAS 1805017-06-4)
- D-Leu14-Tirzepatide (CAS CATO-CPTD788920)
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