3-(1-Methyl-1H-pyrazol-5-yl)benzenesulfonamide CAS 2169043-85-8
| CAS No. | 2169043-85-8 |
| Molecular Formula | C10H11N3O2S |
| Molecular Weight | 237.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(1-Methyl-1H-pyrazol-5-yl)benzenesulfonamide (CAS 2169043-85-8), molecular formula C10H11N3O2S and molecular weight 237.28 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-(1-Methyl-1H-pyrazol-5-yl)benzenesulfonamide (C10H11N3O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 237.28 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures 3-(1-Methyl-1H-pyrazol-5-yl)benzenesulfonamide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H11N3O2S |
| Molecular Weight | 237.28 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.) | 1998 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- 3-(1-Methyl-1H-pyrazol-3-yl)benzenesulfonamide (CAS 2167903-60-6)
- 3-(3,4-Dimethoxyphenyl)-1,2,4-thiadiazol-5-amine (CAS 889940-60-7)
- 3-((3-Methylbenzyl)sulfonyl)-1H-1,2,4-triazole (CAS 339105-87-2)
- 3-(4-(Methylsulfonyl)phenyl)-1H-pyrazol-5-amine (CAS 502133-15-5)
- Fmoc-Met-Bt (CAS 850232-62-1)
- 2-(4-(Trifluoromethoxy)phenoxy)propanoic acid (CAS 175204-35-0)
- 3-[(1,1-Dioxido-1,2-benzisothiazol-3-yl)amino]phenyl 2-chloroacetate (CAS 958697-63-7)
- 5-(3-Chloro-4-fluorophenyl)-5-oxopentanoic acid (CAS 845790-41-2)
- 2-(3,4,5-Trimethoxyphenyl)-1H-pyrrolo[2,3-b]pyridin-4-ol (CAS 913698-77-8)
- Testosterone Cypionate-d3 (CAS 876054-56-7)
- 1187168-51-9 2-(2-Cyclohexenyl)-3-methylpyridine MFCD13152472 (CAS 1187168-51-9)
- 3-(3-Methoxypyridin-2-yl)propanoic acid (CAS 139745-96-3)
- 1-(4,5-Dimethylfuran-2-yl)ethan-1-one (CAS 73761-44-1)
- Peptide Impurity 24 (CAS CATO-CPTD788824)
Why CATO?
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