| CAS No. | 91485-13-1 |
| Molecular Formula | C7H13O6PS2 |
| Molecular Weight | 288.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO manufactures O-Methyl Malathion α-Monoacid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
O-Methyl Malathion α-Monoacid (CAS 91485-13-1) is a high-purity analytical reference standard with the molecular formula C7H13O6PS2 and a molecular weight of 288.28 g/mol.
Owing to a carbohydrate-derived structure, a sulfone group, a phosphate ester group, O-Methyl Malathion α-Monoacid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 288.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
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.
| Molecular Formula | C7H13O6PS2 |
| Molecular Weight | 288.28 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.5 |
| CAS Registry Year (est.) | 1983 |
| Sulfur Atoms | 2 |