| CAS No. | 14298-38-5 |
| Molecular Formula | Er |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
14298-38-5 phosphoric acid,erbium(3+) salt (1:1) (8ci,9ci) (CAS 14298-38-5), molecular formula ErH3O4P and molecular weight 265.25 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 14298-38-5 phosphoric acid,erbium(3+) salt (1:1) (8ci,9ci) (ErH3O4P) is characterized by a phosphate ester group. 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.
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.
As a certified reference material (CRM), 14298-38-5 phosphoric acid,erbium(3+) salt (1:1) (8ci,9ci) 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.
| Molecular Formula | Er H3O4P |
| Molecular Weight | 265.25 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1961 |