(1-(tert-butoxycarbonyl)-5-((4-(2-((tert-butyldimethylsilyl)oxy)ethyl)piperazin-1-yl)methyl)-1H-indol-2-yl)boronic acid CAS 913388-70-2
| CAS No. | 913388-70-2 |
| Molecular Formula | C26H44BN3O5Si |
| Molecular Weight | 517.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (1-(tert-butoxycarbonyl)-5-((4-(2-((tert-butyldimethylsilyl)oxy)ethyl)piperazin-1-yl)methyl)-1H-indol-2-yl)boronic acid (C26H44BN3O5Si) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.5, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 517.54 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
(1-(tert-butoxycarbonyl)-5-((4-(2-((tert-butyldimethylsilyl)oxy)ethyl)piperazin-1-yl)methyl)-1H-indol-2-yl)boronic acid (CAS 913388-70-2), molecular formula C26H44BN3O5Si and molecular weight 517.54 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 | C26H44BN3O5Si |
| Molecular Weight | 517.54 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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 tert Standards
- (1-(tert-butoxycarbonyl)-5-((4-(tert-butoxycarbonyl)piperazin-1-yl)sulfonyl)-1H-indol-2-yl)boronic acid (CAS 503045-77-0)
- 2-((tert-butoxycarbonyl)(2-((2-((2,4-dimethylphenyl)thio)phenyl)amino)-2-oxoethyl)amino)ethyl methanesulfonate (CAS 2084805-38-7)
- 4-(5-((tert-Butoxycarbonyl)amino)isoindolin-2-yl)phenethyl 4-methylbenzenesulfonate (CAS 1998216-21-9)
- 2-((Tert-butoxycarbonyl)amino)-3-(4-hydroxy-3,5-diiodophenyl)propanoic acid (CAS 1260011-49-1)
- 2-((2-(4-((tert-Butoxycarbonyl)amino)phenyl)quinolin-6-yl)oxy)ethyl 4-methylbenzenesulfonate (CAS 1451074-27-3)
- (3-(1-((Tert-butoxycarbonyl)amino)-2-(1-tosyl-1H-indol-3-yl)ethyl)oxetan-3-yl)glycine (CAS 2199281-10-0)
- 2-((tert-Butoxycarbonyl)amino)-3-((tert-butyldimethylsilyl)oxy)-3-(3-phenoxyphenyl)propanoic acid (CAS 1263093-78-2)
- (1-(tert-butoxycarbonyl)-5-(1-(tert-butoxycarbonyl)piperidine-4-carboxamido)-1H-indol-2-yl)boronic acid (CAS 1021342-82-4)
Recommended Standards
- (E)-Methyl 2-amino-5-(2-(cyanoimino)-1-(6-(2-cyanopropan-2-yl)pyridin-3-yl)-3-methyl-2,3-dihydro-1H-imidazo[4,5-c]quinolin-8-yl)nicotinate (CAS 1356035-43-2)
- ML364 (CAS 1991986-30-1)
- H-Arg-Glu-Asp-Val-OH (CAS 107978-83-6)
- Fulvestrant impurity 40 (CAS CATO-C4X-191740)
- 1-(1,2,3,4-Tetrahydroquinolin-8-yl)ethan-1-one (CAS 890093-80-8)
- 4-Chloro-2-[(2,4-difluorophenyl)carbamoyl]phenyl N,N-dimethylsulfamate (CAS 400080-35-5)
- Chloro[(1,2,3,4,5,6-η)-2,2'',4,4'',6,6''-hexamethyl[1,1':3',1''-terphenyl]-2'-thiolato-κS][triisopropylphosphine-κP]ruthenium(II) (CAS 1621182-04-4)
- N-(5-Amino-2-fluorophenyl)-2-phenoxybutanamide (CAS 1020056-93-2)
- 1-(2,4-Dimethoxyphenyl)-1h-imidazole-2-thiol (CAS 475997-84-3)
- 2-((4-Fluorobenzyl)amino)-N-(2-nitrophenyl)acetamide (CAS 882079-72-3)
- 4-Phenyl-1H-pyrazol-3-amine (CAS 5591-70-8)
- Cefeprime Dihydrochloride (CAS 107648-80-6)
- 2-Amino-N-(4-(dimethylamino)cyclohexyl)-N-ethylacetamide (CAS 1353960-08-3)
- Polyphemusin II-Derived Peptide (CAS 229030-20-0)
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