tert-Butyl 5-(5-amino-3-isopropyl-1h-pyrazol-1-yl)-1h-indazole-1-carboxylate CAS 1020173-63-0
| CAS No. | 1020173-63-0 |
| Molecular Formula | C18H23N5O2 |
| Molecular Weight | 341.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
tert-Butyl 5-(5-amino-3-isopropyl-1h-pyrazol-1-yl)-1h-indazole-1-carboxylate (C18H23N5O2) contains a steroid core, an amide 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. 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).
tert-Butyl 5-(5-amino-3-isopropyl-1h-pyrazol-1-yl)-1h-indazole-1-carboxylate (CAS 1020173-63-0), molecular formula C18H23N5O2 and molecular weight 341.41 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures tert-Butyl 5-(5-amino-3-isopropyl-1h-pyrazol-1-yl)-1h-indazole-1-carboxylate 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 | C18H23N5O2 |
| Molecular Weight | 341.41 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 5 |
Recommended Standards
- Boc-Cys(Mob)-OH (CAS 18942-46-6)
- Ethyl 5-(N-(3-(methylthio)phenyl)sulfamoyl)-1H-pyrazole-4-carboxylate (CAS 1093741-28-6)
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Why CATO?
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