1,1,3,3-Tetramethyl-1,3-bis(3,3,3-trifluoropropyl)disiloxane CAS 690-56-2
| CAS No. | 690-56-2 |
| Molecular Formula | C10H20F6OSi2 |
| Molecular Weight | 326.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,1,3,3-Tetramethyl-1,3-bis(3,3,3-trifluoropropyl)disiloxane (CAS 690-56-2), molecular formula C10H20F6OSi2 and molecular weight 326.43 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a hydroxyl group, an ether linkage, fluorine substitution, 1,1,3,3-Tetramethyl-1,3-bis(3,3,3-trifluoropropyl)disiloxane is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 326.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1,1,3,3-Tetramethyl-1,3-bis(3,3,3-trifluoropropyl)disiloxane under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H20F6OSi2 |
| Molecular Weight | 326.43 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -2.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related Tetramethyl Standards
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- 4,4,5,5-Tetramethyl-2-(4-phenyl-2-(trifluoromethyl)but-3-en-1-yl)-1,3,2-dioxaborolane (CAS 2707490-26-2)
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Recommended Standards
- 1-(2,6-Dihydroxyphenyl)-9-phenylnonan-1-one (CAS 63335-23-9)
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- 1-Chloro-5-decyne (CAS 54377-34-3)
- (Z)-N''-Phenyl-N'-(prop-2-en-1-yl)-N-{[3-(trifluoromethyl)phenyl]methyl}guanidine (CAS 338400-56-9)
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- Minalrestat (CAS 129688-50-2)
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