| CAS No. | 7440-09-7 |
| Molecular Formula | K |
| Molecular Weight | 39.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
K Standard Solution (CAS 7440-09-7), molecular formula K and molecular weight 39.10 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of K Standard Solution (K) is characterized by an inorganic composition. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.
CATO manufactures K Standard Solution 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 | K |
| Molecular Weight | 39.10 g/mol |
| Purity | 1000μg/mL in H2O |
| Storage | Store at 2-8°C |
| Solubility (reference) | Freely soluble in water |
| Stability | Stable under recommended storage conditions |
| CAS Registry Year (est.) | 1959 |