3-(Di-tert-butylphosphino)propane-1-sulfonic Acid CAS 1055888-89-5
| CAS No. | 1055888-89-5 |
| Molecular Formula | C11H24O3PS |
| Molecular Weight | 267.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-(Di-tert-butylphosphino)propane-1-sulfonic Acid.
3-(Di-tert-butylphosphino)propane-1-sulfonic Acid (CAS 1055888-89-5) is a high-purity analytical reference standard with the molecular formula C11H24O3PS and a molecular weight of 267.35 g/mol.
Owing to a sulfone group, a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, 3-(Di-tert-butylphosphino)propane-1-sulfonic Acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 267.35 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C11H24O3PS |
| Molecular Weight | 267.35 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1988 |
| Sulfur Atoms | 1 |
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