1-(Benzylsulfonyl)-3,5-dimethyl-1H-pyrazole CAS 13658-76-9
| CAS No. | 13658-76-9 |
| Molecular Formula | C12H14N2O2S |
| Molecular Weight | 250.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(Benzylsulfonyl)-3,5-dimethyl-1H-pyrazole (C12H14N2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
1-(Benzylsulfonyl)-3,5-dimethyl-1H-pyrazole (CAS 13658-76-9), molecular formula C12H14N2O2S and molecular weight 250.32 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-(Benzylsulfonyl)-3,5-dimethyl-1H-pyrazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C12H14N2O2S |
| Molecular Weight | 250.32 g/mol |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 7-(4-Methylpiperazin-1-yl)thiazolo[4,5-d]pyrimidin-5-amine (CAS 1363405-25-7)
- 1380571-56-1 N-(4-Hydroxy-benzothiazol-2-yl)-2,2-dimethyl-propionamide (CAS 1380571-56-1)
- Methyl 1-(2-sulfamoylethyl)piperidine-4-carboxylate (CAS 1354952-68-3)
- 1380571-81-2 2,2-Dimethyl-propionic acid2-amino-benzothiazol-4-yl ester (CAS 1380571-81-2)
- 1-(3-Fluoro-4-methylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 1031578-62-7)
- 3-Oxo-2-(tetrahydro-2H-pyran-4-yl)-2,3-dihydropyridazine-4-carboxylic acid (CAS 1443289-09-5)
- Tetrahydro-2H-pyranamine (CAS 64474-04-0)
- Clevidipine Impurity 31 (CAS 1207068-16-3)
- 6-(1H-imidazol-1-yl)pyridin-3-amine,2HCl (CAS 1431963-37-9)
- Fmoc-Glu(α-O<I>t</I>Bu)-OH-<SUP>13</SUP>C<SUB>5</SUB>,<SUP>15</SUP>N (CAS 1628109-77-2)
- 3-(4-Nitrophenyl)-4,5-dihydro-1,2,4-oxadiazol-5-one (CAS 19932-97-9)
- 4-Fluoro-1-nitro-2-vinylbenzene (CAS 951667-82-6)
- N-[4-(4-Acetylpiperazin-1-yl)-2-fluorobenzyl]-3,5-dichloro-N-cyclobutyl-benzenesulfonamide (CAS 1445901-81-4)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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