2,4,5-Trichlorophenyl diethylphosphinothioate CAS 5745-14-2
| CAS No. | 5745-14-2 |
| Molecular Formula | C10H12Cl3OPS |
| Molecular Weight | 317.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,4,5-Trichlorophenyl diethylphosphinothioate (CAS 5745-14-2), molecular formula C10H12Cl3OPS and molecular weight 317.60 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to sulfur-containing functionality, organophosphorus functionality, a hydroxyl group, an ether linkage, chlorine substitution, 2,4,5-Trichlorophenyl diethylphosphinothioate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 317.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C10H12Cl3OPS |
| Molecular Weight | 317.60 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 6-Fluoro-2-hydroxy-3-nitrobenzaldehyde (CAS 38225-97-7)
- 2-(Piperazin-1-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine (CAS 1351990-53-8)
- (2S,4R)-1-((Benzyloxy)carbonyl)-4-((tert-butoxycarbonyl)amino)pyrrolidine-2-carboxylic acid (CAS 393524-17-9)
- 1,3,7-Trimethyl-1H-indazole (CAS 58706-37-9)
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- 1,1',1''-(Benzene-1,3,5-triyl)tris(2-bromoethanone) (CAS 38460-56-9)
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