tert-Butyl 7-amino-1H-indazole-1-carboxylate CAS 173459-53-5
| CAS No. | 173459-53-5 |
| Molecular Formula | C12H15N3O2 |
| Molecular Weight | 233.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
tert-Butyl 7-amino-1H-indazole-1-carboxylate (C12H15N3O2) contains an amino-acid-derived structure, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
tert-Butyl 7-amino-1H-indazole-1-carboxylate (CAS 173459-53-5), molecular formula C12H15N3O2 and molecular weight 233.27 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C12H15N3O2 |
| Molecular Weight | 233.27 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2006 |
| Nitrogen Atoms | 3 |
Recommended Standards
- 4-Amino-N-isopropyl-6-methyl-6H-pyrrolo[3,4-d]pyrimidine-7-carboxamide (CAS 1713477-07-6)
- P,P-Diphenylphosphinothioic amide (CAS 17366-80-2)
- 2-(4-Amino-5-(2-methoxyphenyl)-1H-pyrazol-1-yl)ethanol (CAS 1713476-56-2)
- tert-Butyl 4-amino-1H-pyrrolo[2,3-b]pyridine-1-carboxylate (CAS 173898-20-9)
- rel-(3R,4R)-1-(tert-Butoxycarbonyl)-4-neopentylpyrrolidine-3-carboxylic acid (CAS 2173997-02-7)
- 6-Benzyl-2-(2,6-dimethoxybenzamido)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxamide hydrochloride (CAS 1177608-22-8)
- 2-(2,4-Dichlorophenyl)-1-{[3-(trifluoromethyl)phenyl]methoxy}-1H-imidazo[4,5-b]pyridine (CAS 338978-57-7)
- Methyl (2E)-2-{2-[3-(morpholine-4-sulfonyl)pyridin-2-yl]hydrazin-1-ylidene}propanoate (CAS 1786065-51-7)
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- 1,2,5-Trimethyl-3H-cyclopenta[c]quinolin-4(5H)-one (CAS 88368-82-5)
- Fmoc-D-Asn(Mtt)-OH (CAS 200259-50-3)
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- Insulin Degludec Impurity 24 (CAS CATO-C4X-215724)
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