5-(Ethylsulfonyl)-4-(4-methoxyphenyl)-1H-thieno[2,3-c]pyrazol-3-amine CAS 1707605-58-0
| CAS No. | 1707605-58-0 |
| Molecular Formula | C14H15N3O3S2 |
| Molecular Weight | 337.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-(Ethylsulfonyl)-4-(4-methoxyphenyl)-1H-thieno[2,3-c]pyrazol-3-amine is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-(Ethylsulfonyl)-4-(4-methoxyphenyl)-1H-thieno[2,3-c]pyrazol-3-amine (CAS 1707605-58-0), molecular formula C14H15N3O3S2 and molecular weight 337.42 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 5-(Ethylsulfonyl)-4-(4-methoxyphenyl)-1H-thieno[2,3-c]pyrazol-3-amine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 337.42 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures 5-(Ethylsulfonyl)-4-(4-methoxyphenyl)-1H-thieno[2,3-c]pyrazol-3-amine 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 | C14H15N3O3S2 |
| Molecular Weight | 337.42 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Ethylsulfonyl Standards
- 5-(Ethylsulfonyl)-2-(naphthalen-2-yl)benzo[d]oxazole (CAS 945531-77-1)
- 2-(Ethylsulfonyl)-4-(5-methylthiophen-2-yl)-6-(trifluoromethyl)pyrimidine (CAS 832737-60-7)
- 1-(Ethylsulfonyl)-2-((naphthalen-1-ylmethyl)thio)-4,5-dihydro-1H-imidazole (CAS 868218-58-0)
- 2-(ethylsulfonyl)-4-(4-fluorophenyl)-6-(trifluoromethyl)pyrimidine (CAS 832737-56-1)
- 1-(4-(Ethylsulfonyl)-2-nitrophenyl)piperidine-4-carboxamide (CAS 942474-30-8)
- 4-Butyl-5-(1-(ethylsulfonyl)piperidin-3-yl)-4H-1,2,4-triazole-3-thiol (CAS 932830-45-0)
- 5-(1-(Ethylsulfonyl)piperidin-3-yl)-4-isobutyl-4H-1,2,4-triazole-3-thiol (CAS 932830-51-8)
- 1-[4-(Ethylsulfonyl)-2-nitrophenyl]piperidine-2-carboxylic acid (CAS 1214083-46-1)
Recommended Standards
- 2-(1H-benzo[d][1,2,3]triazol-1-yl)-1-cyclohexyl-2-phenoxyethan-1-ol (CAS 162107-46-2)
- N-(4-Oxo-5,6,7,8-tetrahydro-4H-thiazolo[5,4-c]azepin-2-yl)-4-propyl-1,2,3-thiadiazole-5-carboxamide (CAS 1797027-42-9)
- 4'-(2,4-Dimethylphenyl)-2,2':6',2''-terpyridine (CAS 158014-69-8)
- N-(Furan-2-ylmethyl)-1-methyl-N-(thiophen-3-ylmethyl)-1H-pyrazole-4-sulfonamide (CAS 1797212-96-4)
- 6-Bromo-5-methyltetrazolo[1,5-a]pyridine (CAS 1257665-09-0)
- 2-(1-Benzothiophen-2-ylformamido)pentanoic acid (CAS 1485725-73-2)
- (S)-6-methyloctanoic acid (CAS 928-30-3)
- 3-methyl-3-(methylamino)butan-1-ol (CAS 17945-49-2)
- 2-Chloro-4-phenyl-6-(p-tolyl)nicotinonitrile (CAS 38477-47-3)
- tert-Butyl 4-(2-oxoethylidene)piperidine-1-carboxylate (CAS 502609-58-7)
- 2-({2-[(2-chloro-1,3-thiazol-5-yl)methoxy]phenyl}methylene)malononitrile (CAS 338393-71-8)
- 4-(2-Fluorobenzyl)thiomorpholine (CAS 331856-26-9)
- 1-Chloro-3,3-dimethylbutane (CAS 2855-08-5)
- Semaglutide Impurity 176 (CAS CATO-C4X-2226176)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com