O-(2,4-Dichlorophenyl) O-methyl isopropylphosphoramidothioate CAS 299-85-4
| CAS No. | 299-85-4 |
| Molecular Formula | C10H14Cl2NO2PS |
| Molecular Weight | 314.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
O-(2,4-Dichlorophenyl) O-methyl isopropylphosphoramidothioate (CAS 299-85-4), molecular formula C10H14Cl2NO2PS and molecular weight 314.17 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of O-(2,4-Dichlorophenyl) O-methyl isopropylphosphoramidothioate (C10H14Cl2NO2PS) is characterized by an amide group, a sulfone group, organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), O-(2,4-Dichlorophenyl) O-methyl isopropylphosphoramidothioate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H14Cl2NO2PS |
| Molecular Weight | 314.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related O Standards
- 2-(3,4-Dichlorophenyl)naphtho[1,2-d]oxazole (CAS 1415985-98-6)
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- Ethyl 3-(2,4-dichlorophenyl)-2-(1,2-oxazol-5-yl)propanoate (CAS 672949-13-2)
- Methyl 3-(2,6-dichlorophenyl)-5-isopropylisoxazole-4-carboxylate (CAS 278597-28-7)
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Recommended Standards
- n-(4-Bromo-2-fluorophenyl)-2-(thiophen-3-yl)acetamide (CAS 730987-97-0)
- Resmetirom Impurity 23 (CAS 2768217-12-3)
- [1-(4-Chlorophenyl)-1H-1,2,3-triazol-4-yl]methyl 4-chlorobutanoate (CAS 338419-29-7)
- Resmetirom Impurity 6 (CAS 920509-28-0)
- 1-Ethynyl-3-isopropoxybenzene (CAS 1206594-59-3)
- 2,5-Dimethyl-N-(thiophen-3-ylmethyl)aniline (CAS 1021132-84-2)
- 2-[4-(1,3,4-Oxadiazol-2-yl)phenoxy]acetamidoxime (CAS 258521-20-9)
- Methyl 2-(2,6-dichlorophenyl)sulfanylacetate (CAS 1097167-77-5)
- 3-Amino-3-(3-fluorophenyl)propan-1-ol (CAS 683221-07-0)
- 2-Chloro-5-(4-propylbenzoyl)pyridine (CAS 1187165-04-3)
- 2-(3-Methyl-7-oxo-3,7-dihydro-6H-[1,2,3]triazolo[4,5-d]pyrimidin-6-yl)-N-(5-methylisoxazol-3-yl)acetamide (CAS 946306-80-5)
- 3-Hydroxy-3-(2-oxo-2-(pyridin-3-yl)ethyl)-1-phenethylindolin-2-one (CAS 356080-86-9)
- 7-pyridin-3-yl[1,2,4]triazolo[1,5-a]pyrimidin-2-amine (CAS 338793-20-7)
- MLCK inhibitor peptide 18 (CAS 224579-74-2)
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