2,2,4,4-Tetramethyl-3,8,11,14,17-pentaoxa-2,4-disilaoctadecane CAS 855996-83-7
| CAS No. | 855996-83-7 |
| Molecular Formula | C15H36O5Si2 |
| Molecular Weight | 352.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 352.61 g/mol gives 2,2,4,4-Tetramethyl-3,8,11,14,17-pentaoxa-2,4-disilaoctadecane distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2,2,4,4-Tetramethyl-3,8,11,14,17-pentaoxa-2,4-disilaoctadecane (CAS 855996-83-7), a certified reference material (molecular formula C15H36O5Si2, MW 352.61 g/mol) for analytical method development and quality control.
2,2,4,4-Tetramethyl-3,8,11,14,17-pentaoxa-2,4-disilaoctadecane (C15H36O5Si2) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
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 | C15H36O5Si2 |
| Molecular Weight | 352.61 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -2.0 |
| CAS Registry Year (est.) | 1987 |
Related Tetramethyl Standards
- 1-(2,2,6,6-Tetramethyl-4-{[(phenylsulfonyl)oxy]imino}piperidino)-1-ethanone (CAS 478079-97-9)
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Recommended Standards
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- N-(4-Acetylphenyl)-5-bromo-2-chlorobenzamide (CAS 333355-23-0)
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- 2-(Difluoromethyl)-5,6-difluoronicotinic acid (CAS 1804711-13-4)
- 2,5-Dichloro-3-methylbenzoyl chloride (CAS 1806304-08-4)
- 15850-31-4 4-(4-Isopropoxy-phenyl)-thiazol-2-ylamine 4997AD C12H14N2OS (CAS 15850-31-4)
- 5-Isopropoxy-2-methylphenol (CAS 918445-11-1)
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- Cefmenoxime Impurity 2 (CAS 66340-45-2)
- Pancreatic Polypeptide (rat) (CAS 90419-12-8)
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