| CAS No. | 167100-86-9 |
| Molecular Formula | C4H8NO3P |
| Molecular Weight | 149.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 149.08 g/mol gives Chlorpyrifos Impurity 1 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Chlorpyrifos Impurity 1 (CAS 167100-86-9), molecular formula C4H8NO3P and molecular weight 149.08 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C4H8NO3P, Chlorpyrifos Impurity 1 contains an amide group, a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 149.08 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures Chlorpyrifos Impurity 1 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.
| Molecular Formula | C4H8NO3P |
| Molecular Weight | 149.08 g/mol |
| Purity | 97%+ |
| 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.) | 2004 |
| Nitrogen Atoms | 1 |