3-Hydroxy-4-phenyl-1H-pyrazolo[3,4-b]pyridine-6-carboxylic acid CAS 1219540-40-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1219540-40-5 |
| Molecular Formula | C13H9N3O3 |
| Molecular Weight | 255.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Hydroxy-4-phenyl-1H-pyrazolo[3,4-b]pyridine-6-carboxylic acid (CAS 1219540-40-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C13H9N3O3. Molecular weight: 255.23 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C13H9N3O3 |
| Molecular Weight | 255.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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.) | 1990 |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 1218-98-0 2-AMINO-7,8-DIHYDRO-6-(1,2,3-TRIHYDROXYPROPYL)-4(1H)-PTERIDINONE 2-Amino-4-hydroxy-6-(D-erythro-1,2,3-trihydroxypropyl)-7,8-dihydropteridine 2-amino-6-[(1S,2R)-1,2,3-trihydroxypropyl]-7,8-dihydropteridin-4(3H)-one 7,8-dihydroneopterin CHEBI:17001 Dihydroneopterin (CAS 1218-98-0)
- 3-Oxo-6-phenyl-1h,2h,3h-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1221724-64-6)
- tert-butyl 3-(trifluoromethoxy)pyrrolidine-1-carboxylate (CAS 1206523-91-2)
- 4-(3-Methyl-1H-pyrazol-1-yl)benzaldehyde (CAS 79382-71-1)
- 20-Deoxo-20-(1-piperidinyl)tylosin (CAS 1003024-00-7)
- N-(2-Amino-6-chlorophenyl)methanesulfonamide (CAS 1248124-91-5)
- (2R,3S,4R)-2-(((tert-Butyldiphenylsilyl)oxy)methyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate (CAS 151797-32-9)
- N-([1,3]Dioxolo[4',5':4,5]benzo[1,2-d]thiazol-6-yl)-2-(2,5-dioxopyrrolidin-1-yl)acetamide (CAS 892851-42-2)
- 5-amino-2-(hydroxymethyl)benzenesulfonic acid;sodium hydride (CAS 2563871-70-3)
- Semaglutide Impurity 139 (CAS CATO-C4X-2226139)
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