Perfluorophenyl 11-(trimethoxysilyl)undecanoate CAS 944721-52-2
| CAS No. | 944721-52-2 |
| Molecular Formula | C20H29F5O5Si |
| Molecular Weight | 472.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 472.52 g/mol gives Perfluorophenyl 11-(trimethoxysilyl)undecanoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Perfluorophenyl 11-(trimethoxysilyl)undecanoate (CAS 944721-52-2), molecular formula C20H29F5O5Si and molecular weight 472.52 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, a hydroxyl group, an ether linkage, fluorine substitution, Perfluorophenyl 11-(trimethoxysilyl)undecanoate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 472.52 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.
As a certified reference material (CRM), Perfluorophenyl 11-(trimethoxysilyl)undecanoate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H29F5O5Si |
| Molecular Weight | 472.52 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
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Recommended Standards
- 2-((6-(Adamantan-1-yl)-3-cyano-4-(trifluoromethyl)pyridin-2-yl)thio)-2-phenylacetic acid (CAS 488827-01-6)
- Cefazolin Impurity 12 (CAS CATO-C4X-157712)
- 4-Bromo-N-(2-chloro-4-iodophenyl)benzenesulfonamide (CAS 1406294-50-5)
- Cefazolin Impurity 16 (CAS CATO-C4X-157716)
- 5-Methanesulfinylpentanenitrile (CAS 61121-66-2)
- (2-Bromophenyl)(3,5-dichlorophenyl)methanol (CAS 1443312-93-3)
- 3-(2-Methyl-4-oxo-1,4-dihydroquinolin-3-yl)propanamide (CAS 34859-21-7)
- 3-(tert-Butyl)-1H-pyrrole-2,5-dione (CAS 55991-56-5)
- tert-Butyl (S)-2-(dimethylcarbamoyl)pyrrolidine-1-carboxylate (CAS 149152-54-5)
- 3-((Trifluoromethyl)sulfonyl)benzaldehyde (CAS 1274904-33-4)
- Naltrexone impurity 60 (CAS CATO-C4X-147560)
- 4-((4-Chloro-3-nitrobenzylidene)amino)-3-(2-chlorophenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478254-38-5)
- Desmopressin EP Impurity B (CAS CATO-C4X-221524)
- Prolactin-Releasing Peptide (1-31) (human) (CAS 215510-22-8)
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