1-((2-Methoxy-4,5-dimethylphenyl)sulfonyl)-1H-pyrazole CAS 1206087-13-9
| CAS No. | 1206087-13-9 |
| Molecular Formula | C12H14N2O3S |
| Molecular Weight | 266.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-((2-Methoxy-4,5-dimethylphenyl)sulfonyl)-1H-pyrazole (CAS 1206087-13-9), molecular formula C12H14N2O3S and molecular weight 266.32 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H14N2O3S, 1-((2-Methoxy-4,5-dimethylphenyl)sulfonyl)-1H-pyrazole contains a nitrogen-containing heterocyclic scaffold, 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 266.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 1-((2-Methoxy-4,5-dimethylphenyl)sulfonyl)-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 | C12H14N2O3S |
| Molecular Weight | 266.32 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.) | 1990 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methoxy Standards
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Recommended Standards
- 3-(1-Piperazinylsulfonyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1193387-41-5)
- Methyl 2-imino-3-(2-methoxyethyl)-2,3-dihydrobenzo[d]thiazole-6-carboxylate (CAS 1207046-18-1)
- Ethyl 2-(ethylthio)-7-methyl-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate (CAS 1189166-68-4)
- 3-Formyl-N,N,1-trimethyl-1H-indole-5-sulfonamide (CAS 120729-88-6)
- 1,3-Thiazole-2-carbothioamide (CAS 60758-41-0)
- 2-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-N-(4-chlorobenzyl)acetamide (CAS 478063-70-6)
- 5-Butylthiazole-4-carboxylic acid (CAS 864437-43-4)
- 2-Methyl-2,3-dihydro-1H-quinolin-4-one (CAS 30448-37-4)
- N-(3,5-dimethylphenyl)-2-((2,3,4,5,6-pentamethylbenzyl)thio)acetamide (CAS 329079-47-2)
- N-butyl-2,2,2-trifluoroacetimidamide (CAS 1584-06-1)
- [1,3]Dioxolo[4,5-h]quinazoline (CAS 234-30-0)
- 2-phenylquinolin-4-amine hydrochloride (CAS 65197-47-9)
- Apremilast impurity 13 (CAS CATO-C4X-100913)
- Tau Peptide (294-305) (human) trifluoroacetate salt (CAS 1428135-29-8)
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