| CAS No. | 68959-21-7 |
| Molecular Formula | C18H32N2O4Si |
| Molecular Weight | 368.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 368.54 g/mol gives (S)-1-(1-Phenylethyl)-1-(3-(triethoxysilyl)propyl)urea distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(S)-1-(1-Phenylethyl)-1-(3-(triethoxysilyl)propyl)urea (CAS 68959-21-7), molecular formula C18H32N2O4Si and molecular weight 368.54 g/mol, is a CATO reference standard with documented purity and traceability.
(S)-1-(1-Phenylethyl)-1-(3-(triethoxysilyl)propyl)urea (C18H32N2O4Si) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures (S)-1-(1-Phenylethyl)-1-(3-(triethoxysilyl)propyl)urea 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.
| Molecular Formula | C18H32N2O4Si |
| Molecular Weight | 368.54 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 2 |