| CAS No. | 13435-05-7 |
| Molecular Formula | C36H81O4PSn3 |
| Molecular Weight | 965.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Tris(tributylstannyl) phosphate.
Tris(tributylstannyl) phosphate (CAS 13435-05-7) is a high-purity analytical reference standard with the molecular formula C36H81O4PSn3 and a molecular weight of 965.13 g/mol.
Structurally, Tris(tributylstannyl) phosphate (C36H81O4PSn3) contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of -3.5, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 965.13 g/mol, it falls into the high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
| Molecular Formula | C36H81O4PSn3 |
| Molecular Weight | 965.13 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -3.5 |
| CAS Registry Year (est.) | 1960 |