1H-Pyrazolo[3,4-b]pyridine-4-thiol CAS 49834-64-2
| CAS No. | 49834-64-2 |
| Molecular Formula | C6H5N3S |
| Molecular Weight | 151.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies 1H-Pyrazolo[3,4-b]pyridine-4-thiol (CAS 49834-64-2), a certified reference material (molecular formula C6H5N3S, MW 151.19 g/mol) for analytical method development and quality control.
1H-Pyrazolo[3,4-b]pyridine-4-thiol (C6H5N3S) contains a nitrile group, sulfur-containing functionality, an aromatic ring system. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C6H5N3S |
| Molecular Weight | 151.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related H Standards
- pyrazolo[1,5-a]pyridine-5-carbonitrile (CAS 1352903-96-8)
- 2-(1H-Pyrazolo[1,5-b][1,2,4]triazol-2-yl)ethanamine (CAS 197355-77-4)
- 2-(1H-Pyrazolo[5,1-c][1,2,4]triazol-3-yl)ethanamine (CAS 197355-88-7)
- pyrazolo[1,5-a]pyridine-3-carbonitrile (CAS 25627-89-8)
- N-(Pyrazolo[1,5-a][1,3,5]triazin-4-yl)hydroxylamine (CAS 71774-62-4)
- 2H-Pyrazolo[4,3-c]pyridine-4,6(5H,7H)-dione (CAS 860411-17-2)
- pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione (CAS 672323-32-9)
- 1H-Pyrazolo[3,4-d]pyrimidine-4,6(3aH,5H)-dione (CAS 1049677-62-4)
Recommended Standards
- 1H-pyrazole-4-sulfonamide (CAS 27429-59-0)
- 2-(1H-Imidazol-1-yl)thiazole (CAS 446287-13-4)
- 1H-Imidazo[4,5-b]pyridine-2-thiol (CAS 29448-81-5)
- 2-(1H-Imidazol-2-yl)thiazole (CAS 438545-36-9)
- 1-Oxa-8-azaspiro[4.5]decan-2-one (CAS 167364-29-6)
- Tetraniliprole (CAS 1229654-66-3)
- 3-Cyclopropoxy-6-(dimethylamino)picolinamide (CAS 1243317-65-8)
- 4516-90-9 2-Methyl-3-buten-1-ol 2-methylbut-3-en-1-ol CHEBI:165505 (CAS 4516-90-9)
- 2-Chloro-6-(5-trifluoromethylpyrazol-1-yl)pyridine (CAS 1150164-45-6)
- 5-(4-Bromobenzenesulfinyl)-4-methyl-1,2,3-thiadiazole (CAS 282523-00-6)
- Mifepristone Impurity 15 (CAS CATO-C4X-121615)
- 6-methyl-3-(methylsulfanyl)-4,5-dihydro-1,2,4-triazin-5-one (CAS 1566-32-1)
- 3-[4-(tert-Butyl)-2-methylphenoxy]pyrrolidinehydrochloride (CAS 1220030-71-6)
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