| CAS No. | 911392-42-2 |
| Molecular Formula | [13C]20H18ClNO6 |
| Molecular Weight | 423.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 423.67 g/mol gives Ochratoxin A-13C20 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ochratoxin A-13C20 (CAS 911392-42-2), molecular formula [13C]20H18ClNO6 and molecular weight 423.67 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula [13C]20H18ClNO6, Ochratoxin A-13C20 contains chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 423.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
| Molecular Formula | [13C]20H18ClNO6 |
| Molecular Weight | 423.67 g/mol |
| Purity | 10μg/mL in Acetonitrile |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | -7.0 |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |