(S)-2-Cl-Phox-tBu CAS 2757082-50-9
| CAS No. | 2757082-50-9 |
| Molecular Formula | C25H25ClNOP |
| Molecular Weight | 421.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, organophosphorus functionality, a hydroxyl group, an ether linkage, chlorine substitution, (S)-2-Cl-Phox-tBu is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 421.90 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.
(S)-2-Cl-Phox-tBu (CAS 2757082-50-9) is a high-purity analytical reference standard with the molecular formula C25H25ClNOP and a molecular weight of 421.90 g/mol.
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 | C25H25ClNOP |
| Molecular Weight | 421.90 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- (R)-2-Cl-Phox-tBu (CAS 2757082-51-0)
- 2-((5-(2-Chlorophenyl)-1,3,4-oxadiazol-2-yl)thio)-N,N-diphenylacetamide (CAS 336180-10-0)
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- 2-((5-(4-Chlorophenyl)-1,3,4-oxadiazol-2-yl)thio)-N,N-diphenylacetamide (CAS 332386-58-0)
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- Semaglutide impurity 38 (CAS CATO-C4X-222638)
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