3-(Ethylsulfonyl)-4-(3-methoxyphenyl)-1H-pyrazole CAS 1707370-41-9
| CAS No. | 1707370-41-9 |
| Molecular Formula | C12H14N2O3S |
| Molecular Weight | 266.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-(Ethylsulfonyl)-4-(3-methoxyphenyl)-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.
CATO supplies 3-(Ethylsulfonyl)-4-(3-methoxyphenyl)-1H-pyrazole (CAS 1707370-41-9), a certified reference material (molecular formula C12H14N2O3S, MW 266.32 g/mol) for analytical method development and quality control.
3-(Ethylsulfonyl)-4-(3-methoxyphenyl)-1H-pyrazole (C12H14N2O3S) contains a nitrogen-containing heterocyclic scaffold, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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.) | 1994 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Ethylsulfonyl Standards
- 3-(Ethylsulfonyl)-4-(2-methoxyphenyl)-1H-pyrazole (CAS 1707374-35-3)
- 4-(Ethylsulfonyl)-3-(4-methoxyphenyl)-1H-pyrazole (CAS 1708485-90-8)
- 3-[2-(Ethylsulfonyl)propyl]-Pentanedioic Acid (CAS 116007-15-9)
- 3-(Ethylsulfonyl)-4-fluorobenzenesulfonamide (CAS 1354960-84-1)
- Methyl 6-(ethylsulfonyl)-1H-indole-2-carboxylate (CAS 910443-13-9)
- 2-(5-(Ethylsulfonyl)-2-methoxyphenyl)-1H-pyrrole (CAS 110319-95-4)
- 3-(Ethylsulfonyl)-2-(4-methoxyphenyl)-1H-pyrrole (CAS 1708269-44-6)
- 2-Butyl-5-(ethylsulfonyl)benzo[d]oxazole (CAS 866142-96-3)
Recommended Standards
- 2-((2H-Benzo[d][1,2,3]triazol-2-yl)methyl)benzo[d]thiazole (CAS 156272-78-5)
- 2-((1H-Benzo[d][1,2,3]triazol-1-yl)methyl)benzo[d]thiazole (CAS 156272-74-1)
- 1-(3-(Furan-2-yl)-3-hydroxypropyl)-3-(thiophen-2-yl)urea (CAS 1421516-68-8)
- 3-Methyl-9-phenylthieno[3,2-e][1,2,4]triazolo[4,3-c]pyrimidine (CAS 182199-66-2)
- 5-Bromo-4,4-dimethyl-1,2,3,4-tetrahydroisoquinoline hydrochloride (CAS 1203683-41-3)
- 2-(1H-Benzo[d][1,2,3]triazol-1-yl)-2-(p-tolyl)-3-(trimethylsilyl)propanal (CAS 241466-88-6)
- 1-Boc-2-aziridinecarboxylic Acid (CAS 181212-91-9)
- 1,2,4-thiadiazole-3,5-diamine (CAS 34283-30-2)
- 1-[3-Nitro-4-(1H-pyrazol-1-yl)phenyl]ethanone (CAS 1152964-28-7)
- 7-Methoxy-1,2,3,4-tetrahydroisoquinoline (CAS 43207-78-9)
- 4-(4-Fluorophenyl)-1,7-dithia-4-azaspiro[4.4]nonan-3-one 7,7-dioxide (CAS 880450-15-7)
- Baclofen Impurity 67 (CAS CATO-C4X-101267)
- 2-Amino-5-[(furan-2-yl)methyl]-5-(3-methoxyphenyl)-4,5-dihydro-1H-imidazol-4-one (CAS 1354916-34-9)
- Peptide Impurity 28 (CAS 1350456-64-2)
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