5-[4-(Benzenesulfonyl)-1-phenyl-1H-pyrazol-5-yl]-4-methyl-2-phenyl-1,3-thiazole CAS 955962-74-0
| CAS No. | 955962-74-0 |
| Molecular Formula | C25H19N3O2S2 |
| Molecular Weight | 457.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-[4-(Benzenesulfonyl)-1-phenyl-1H-pyrazol-5-yl]-4-methyl-2-phenyl-1,3-thiazole (CAS 955962-74-0), molecular formula C25H19N3O2S2 and molecular weight 457.57 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C25H19N3O2S2, 5-[4-(Benzenesulfonyl)-1-phenyl-1H-pyrazol-5-yl]-4-methyl-2-phenyl-1,3-thiazole contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 457.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C25H19N3O2S2 |
| Molecular Weight | 457.57 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Benzenesulfonyl Standards
- 4-(Benzenesulfonyl)-3-{4-[(4-fluorophenyl)methoxy]-3-methoxyphenyl}-2-methyl-1,2-oxazolidine (CAS 321432-18-2)
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Recommended Standards
- 5,6-Dichloro-2-(6-chloropyridin-3-yl)-1-[(3,4-dichlorophenyl)methyl]-1H-1,3-benzodiazole (CAS 303144-88-9)
- Ethyl 4-[[1-Oxo-4-[(1,5,6,7-tetrahydro-4-oxo-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-2-yl)thio]butyl]amino]benzoate (CAS 496028-91-2)
- 5,6-Dichloro-2-(6-chloropyridin-3-yl)-1-(2,4-dichlorobenzyl)-1H-benzo[d]imidazole (CAS 303144-82-3)
- Methyl 4-(2-((3-ethyl-4-oxo-3,4,5,6,7,8-hexahydrobenzo[4,5]thieno[2,3-d]pyrimidin-2-yl)thio)acetamido)benzoate (CAS 618879-63-3)
- Methyl 6-(2-aminoethyl)pyridine-2-carboxylate (CAS 910405-69-5)
- 2-(4-Methyl-6-(trifluoromethyl)pyrimidin-2-yl)ethan-1-amine (CAS 936939-84-3)
- 27126-76-7 2EOA97B14A (Hydroxy(4-toluenesulfonato)iodo)benzene UNII-2EOA97B14A Koser's reagent [MI] Htib Hydroxy(4-methylbenzenesulfonato-O)phenyliodine Hydroxy(4-methylbenzenesulfonato-kappaO)phenyliodine Koser's reagent NSC-294176 Phenyliodoso hydroxide tosylate Phenyliodosyl hydroxide tosylate Reagents, koser'S (CAS 27126-76-7)
- Tert-butyl 2-((benzo[d]oxazol-2(3h)-ylideneamino)methyl)piperidine-1-carboxylate (CAS 475105-36-3)
- Tideglusib (benzyl-d7) (CAS CATO-C3D-3720)
- n-(Cyclopropylmethyl)-2,4,4-trimethylpentan-2-amine (CAS 1158011-81-4)
- T5RCK09KHV 150586-58-6 Fipamezole [INN] Fipamezole JP-1730 4-((2RS)-2-Ethyl-5-fluoroindan-2-yl)-1H-imidazole UNII-T5RCK09KHV (CAS 150586-58-6)
- tert-Butyl 4-methyl-2-oxospiro[indoline-3,3'-pyrrolidine]-1'-carboxylate (CAS 2089377-09-1)
- 3-(4-Dimethylaminophenyl)-1-(5-Fluoro-2-Hydroxyphenyl)Prop-2-En-1-One (CAS 2559-04-8)
- Tirzepatide Impurity 17 (CAS CATO-C4X-324017)
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