O,O-Dimethyl Phosphorothionate Ammonium Salt CAS 40633-14-5
| CAS No. | 40633-14-5 |
| Molecular Formula | C2H7O3PS |
| Molecular Weight | N/A |
| 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 O,O-Dimethyl Phosphorothionate Ammonium Salt.
CATO supplies O,O-Dimethyl Phosphorothionate Ammonium Salt (CAS 40633-14-5), a certified reference material (molecular formula C2H7O3PSH3N, MW 159.14 g/mol) for analytical method development and quality control.
O,O-Dimethyl Phosphorothionate Ammonium Salt (C2H7O3PSH3N) contains an amide group, a sulfone group, a phosphonate group, a carboxylic acid group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C2H7O3PS H3N |
| Molecular Weight | 159.14 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | -1.5 |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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