Tetra-sec-butyl orthosilicate CAS 5089-76-9
| CAS No. | 5089-76-9 |
| Molecular Formula | C16H36O4Si |
| Molecular Weight | 320.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Tetra-sec-butyl orthosilicate (CAS 5089-76-9), molecular formula C16H36O4Si and molecular weight 320.54 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C16H36O4Si, Tetra-sec-butyl orthosilicate contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 320.54 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C16H36O4Si |
| Molecular Weight | 320.54 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -1.0 |
| CAS Registry Year (est.) | 1958 |
Related Tetra Standards
- 1-2-3-4-Tetra-O-acetyl-α-D-arabinopyranose (CAS 108646-05-5)
- 1,2,3,4-Tetra-O-acetyl-b-L-xylopyranose (CAS 78088-17-2)
- 1,2,3,4-Tetra-O-acetyl-D-xylopyranose (CAS 62929-49-1)
- 1,2,3,5-Tetra-O-acetyl-a-D-arabinofuranose (CAS 43225-70-3)
- 1,2,3,5-Tetra-O-acetyl-alpha-L-arabinofuranose (CAS 79120-81-3)
- 1,2,3,5-Tetra-O-acetyl-D-xylofuranose (CAS 42927-46-8)
- 1-2-3-4-Tetra-O-acetyl-L-lyxopyranose (CAS 99880-95-2)
- 1-2-3-4-Tetra-O-acetyl-β-D-ribopyranose (CAS 4049-34-7)
Recommended Standards
- 7-Chloro-2-iodothieno[3,2-b]pyridine-6-carbonitrile (CAS 700844-17-3)
- 4766-57-8 Butyl silicate ((BuO)4Si) Butyl silicate ((C4H9O)4Si) NSC-89762 NSC89762 Silane, tetrabutoxy- Silicic acid (H4SiO4), tetrabutyl ester Silicon tetrabutoxide Tetra-n-butoxysilane Tetrabutoxysilane Tetrabutyl orthosilicate Tetrabutyl silicate (CAS 4766-57-8)
- 4-Chloro-2-iodothieno[3,2-c]pyridine-7-carbonitrile (CAS 690635-52-0)
- 2,7-di-tert-butyl-9-fluorenylmethanol (CAS 136453-59-3)
- 2-Acetyl-5-methoxybenzofuran (CAS 21587-39-3)
- Methyl 3-chloro-2-(trifluoromethyl)benzoate (CAS 1214353-19-1)
- 4-(Dibenzylamino)butan-2-one (CAS 26734-07-6)
- (4Z)-4-[(Dimethylamino)({7-methylimidazo[1,2-a]pyridin-3-yl})methylidene]-2-phenyl-4,5-dihydro-1,3-oxazol-5-one (CAS 214599-11-8)
- <I>N,N</I>-Diisopropylphosphoramidite di<I>tert</I>butyl (CAS 137348-86-8)
- 8,9-Dihydropyrido[2,3-b][1,6]Naphthyridin-7(6H)-Yl[3-(Trifluoromethyl)Phenyl]Methanone (CAS 389117-39-9)
- 2-Chloro-3-hydroxy-2-cyclohexenone (CAS 89466-67-1)
- 2-Nitro-9H-fluoren-1-ol (CAS 6344-59-8)
- (2,2,5,5-Tetramethyltetrahydrofuran-3-yl)methanamine (CAS 1542697-90-4)
- Angiotensin III Antipeptide (CAS 133605-55-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com