8-(tert-Butyldimethylsilyloxy) 8-Hydroxy Efavirenz-d4 CAS 1185072-51-8
| CAS No. | 1185072-51-8 |
| Molecular Formula | - |
| Molecular Weight | 449.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 8-(tert-Butyldimethylsilyloxy) 8-Hydroxy Efavirenz-d4 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.
8-(tert-Butyldimethylsilyloxy) 8-Hydroxy Efavirenz-d4 (CAS 1185072-51-8), molecular formula C20H19D4ClF3NO3Si and molecular weight 449.96 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H19D4ClF3NO3Si, 8-(tert-Butyldimethylsilyloxy) 8-Hydroxy Efavirenz-d4 contains deuterium isotope labeling, a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 449.96 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H19D4ClF3NO3Si |
| Molecular Weight | 449.96 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related tert Standards
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