1-isopropyl-4-methyl-1H-pyrazolo[3,4-b]pyridin-6-yl 3-nitrobenzenesulfonate CAS 929975-54-2
| CAS No. | 929975-54-2 |
| Molecular Formula | C16H16N4O5S |
| Molecular Weight | 376.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H16N4O5S, 1-isopropyl-4-methyl-1H-pyrazolo[3,4-b]pyridin-6-yl 3-nitrobenzenesulfonate contains a flavonoid core, 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 376.39 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).
1-isopropyl-4-methyl-1H-pyrazolo[3,4-b]pyridin-6-yl 3-nitrobenzenesulfonate (CAS 929975-54-2) is a high-purity analytical reference standard with the molecular formula C16H16N4O5S and a molecular weight of 376.39 g/mol.
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 | C16H16N4O5S |
| Molecular Weight | 376.39 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related isopropyl Standards
- 2-Isopropyl-5-methylphenyl 2-[2-(trifluoromethyl)-1H-1,3-benzimidazol-1-yl]acetate (CAS 551921-10-9)
- 2-({2-[2-(2-Isopropyl-5-methylphenoxy)acetyl]hydrazino}carbonyl)cyclohexanecarboxylic acid (CAS 446844-47-9)
- Isopropyl 4-(2-chlorophenyl)-1-ethyl-2-methyl-5-oxo-1,4,5,7-tetrahydrofuro[3,4-b]pyridine-3-carboxylate (CAS 100276-03-7)
- 4-((4-(Ethyl(isopropyl)amino)phenyl)imino)-N-methyl-1-oxo-1,4-dihydronaphthalene-2-carboxamide (CAS 161358-44-7)
- Methyl 8-isopropyl-4-(((trifluoromethyl)sulfonyl)oxy)quinoline-2-carboxylate (CAS 187401-27-0)
- 3-Isopropyl-1-((3-morpholinopropyl)amino)benzo[4,5]imidazo[1,2-a]pyridine-4-carbonitrile (CAS 611197-86-5)
- Isopropyl (1-((5-chloro-8-hydroxyquinolin-7-yl)methyl)piperidin-4-yl)carbamate (CAS 1928763-08-9)
- Isopropyl 5-chloro-1-(2,4-dichlorobenzyl)-6-oxo-1,6-dihydropyridine-3-carboxylate (CAS 242471-96-1)
Recommended Standards
- (2R,3R,4S,5S)-2-(6-Amino-9H-purin-9-yl)-5-(((3-hydroxypyridin-2-yl)thio)methyl)tetrahydrofuran-3,4-diol (CAS 86072-48-2)
- 4-((4-(N-(4,6-Dimethylpyrimidin-2-yl)sulfamoyl)phenyl)amino)-4-oxobut-2-enoic acid (CAS 910621-63-5)
- N-[(5-Fluoro-2,3-dihydro-4-benzofuranyl)methyl]-8-(2-methyl-3-pyridyl)-[1,2,4]triazolo[4,3-c]pyrimidin-5-amine (CAS 1951408-58-4)
- 4-Methoxy-N'-(3-(pyridin-3-yl)-4,5-dihydroisoxazole-5-carbonyl)benzenesulfonohydrazide (CAS 478078-49-8)
- 2-(Trifluoromethyl)benzenethiol (CAS 13333-97-6)
- 3-{2-[(2-Chlorobenzyl)oxy]ethyl}piperidinehydrochloride (CAS 1220018-64-3)
- 1-(4-Benzhydrylpiperazin-1-yl)-2-(naphthalen-1-yl)ethan-1-one (CAS 41332-25-6)
- 9-Bromo-7-methyl-2,3,4,5-tetrahydro-1H-benzo[b]azepin-5-amine (CAS 886367-77-7)
- (2-Methyl-allyloxy)-aceticacid (CAS 10041-27-7)
- Ethyl 4,4,4-trifluoro-3-hydroxy-3-(trifluoromethyl)butanoate (CAS 665-09-8)
- (7h-Purin-8-yl)methanol (CAS 6642-26-8)
- 1-Acetyl-3,4-dimethyl-1H-pyrazol-5(4H)-one (CAS 98334-63-5)
- 6-chloro-2H-[1,2,4]triazolo[4,3-b]pyridazin-3-one (CAS 33050-32-7)
- Semaglutide impurity 73 (CAS CATO-C4X-222673)
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