6-(tert-Butyl)-1-(1,1-dioxidotetrahydrothiophen-3-yl)-3-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid CAS 1437435-87-4
| CAS No. | 1437435-87-4 |
| Molecular Formula | C16H21N3O4S |
| Molecular Weight | 351.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 351.42 g/mol gives 6-(tert-Butyl)-1-(1,1-dioxidotetrahydrothiophen-3-yl)-3-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 6-(tert-Butyl)-1-(1,1-dioxidotetrahydrothiophen-3-yl)-3-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1437435-87-4), a certified reference material (molecular formula C16H21N3O4S, MW 351.42 g/mol) for analytical method development and quality control.
6-(tert-Butyl)-1-(1,1-dioxidotetrahydrothiophen-3-yl)-3-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid (C16H21N3O4S) contains a flavonoid core, 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C16H21N3O4S |
| Molecular Weight | 351.42 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
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