Triphenyl Compound A CAS 21306-65-0
| CAS No. | 21306-65-0 |
| Molecular Formula | C21H21NO3S2 |
| Molecular Weight | 399.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C21H21NO3S2, Triphenyl Compound A contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 399.53 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.
Triphenyl Compound A (CAS 21306-65-0) is a high-purity analytical reference standard with the molecular formula C21H21NO3S2 and a molecular weight of 399.53 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 | C21H21NO3S2 |
| Molecular Weight | 399.53 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Triphenyl Standards
- Triphenyl-d15-tin Chloride (CAS 358731-94-9)
- 4-(3,5,5-Triphenyl-4,5-dihydro-1H-pyrazol-1-yl)benzaldehyde (CAS 88405-42-9)
- 3,5,6-Triphenyl-2-thioxo-2,3-dihydrofuro[2,3-d]pyrimidin-4(1H)-one (CAS 875118-19-7)
- 3-((Triphenyl-lambda5-phosphanylidene)amino)-1H-inden-1-one (CAS 1170393-57-3)
- 2,3,6-Triphenyl-7-propylimidazo[1,2-b][1,2,4]triazine (CAS 90170-14-2)
- Ethyl 2-(triphenyl-lambda5-phosphanylidene)pentanoate (CAS 5717-38-4)
- N,9,9-triphenyl-9H-fluoren-4-amine (CAS 1802591-60-1)
- N,9,9-Triphenyl-9H-fluoren-2-amine (CAS 860465-14-1)
Recommended Standards
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- 5-Bromo-2-(4-fluorophenyl)-1H-indole-3-carboxylic acid (CAS 1956377-34-6)
- 4,4,5,5-Tetramethyl-2-[4-(prop-2-en-1-yloxy)phenyl]-1,3,2-dioxaborolane (CAS 1415236-88-2)
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