Boronic acid, (silanetetrayltetra-4,1-phenylene)tetrakis- (9CI) CAS 499142-74-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 499142-74-4 |
| Molecular Formula | C24H24B4O8Si |
| Molecular Weight | 511.77 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Boronic acid, (silanetetrayltetra-4,1-phenylene)tetrakis- (9CI) (CAS 499142-74-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C24H24B4O8Si. Molecular weight: 511.77 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C24H24B4O8Si |
| Molecular Weight | 511.77 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Related Boronic Standards
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- Boronic acid, [3-[(dibutylamino)carbonyl]phenyl]- (CAS 397843-72-0)
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- Boronic acid, b-[3-[[[(2-fluorophenyl)methyl]amino]carbonyl]phenyl]- (CAS 874288-21-8)
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Recommended Standards
- SB-699551A (free base) (CAS 791789-61-2)
- N-(4-tert-Butylphenyl)-4-(2-{[(4-tert-butylphenyl)carbamothioyl]amino}ethyl)piperazine-1-carbothioamide (CAS 866038-43-9)
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- 5-{[(4-methoxy-2-nitrophenyl)amino]methylidene}-2,2-dimethyl-1,3-dioxane-4,6-dione (CAS 25165-69-9)
- 1-Bromo-4-(4-fluorophenoxy)benzene (CAS 55102-99-3)
- 6-(tert-Butyl)-3-isopropyl-6,7-dihydroisothiazolo[5,4-d]pyrimidin-4(5H)-one (CAS 58045-26-4)
- 3-Fluoro-4-(3-fluorophenoxy)aniline (CAS 937597-93-8)
- 3-(Trifluoromethyl)-4-((trifluoromethyl)thio)aniline (CAS 1301739-31-0)
- Carbomycin (CAS 4564-87-8)
- Semaglutide impurity 271 (CAS CATO-C4X-2226271)
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