3-Aminoindazole-5-boronic Acid Pinacol Ester CAS 953411-16-0
| CAS No. | 953411-16-0 |
| Molecular Formula | C13H18BN3O2 |
| Molecular Weight | 259.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-Aminoindazole-5-boronic Acid Pinacol Ester (CAS 953411-16-0), molecular formula C13H18BN3O2 and molecular weight 259.11 g/mol, is a CATO reference standard with documented purity and traceability.
3-Aminoindazole-5-boronic Acid Pinacol Ester (C13H18BN3O2) contains a nitrogen-containing heterocyclic scaffold, 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).
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 | C13H18BN3O2 |
| Molecular Weight | 259.11 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) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related Aminoindazole Standards
Recommended Standards
- 3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-6,7-dihydro-5H-cyclopenta[b]pyridin-5-one (CAS 2408430-15-7)
- 3-Methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile (CAS 949892-14-2)
- 2-Oxoindoline-6-boronic Acid Pinacol Ester (CAS 893441-85-5)
- 3-Methyl-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,2,4]triazolo[4,3-a]pyridine (CAS 2259877-33-1)
- 5,6-Diamino-1-isopropylpyrimidine-2,4(1H,3H)-dione (CAS 113885-21-5)
- 2,5-Dioxopyrrolidin-1-yl 4-hydroxybenzoate (CAS 70074-31-6)
- 8-Bromo-3-methylimidazo[1,5-a]pyridine (CAS 1052271-64-3)
- N-benzyl-5-chloro-N-methyl-4-(methylamino)pyridine-3-sulfonamide (CAS 1352528-87-0)
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- (7AS)-6-aminotetrahydro-1H-pyrrolo[1,2-c]imidazol-3(2H)-one (CAS 1447603-88-4)
- Hydrochlorothiazide Impurity 8 (CAS CATO-C4X-11778)
- trans-5-aminooxepan-4-ol (CAS 1904088-86-3)
- Allo-Thr7-Tirzepatide (CAS CATO-CPTD788933)
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