| CAS No. | 1303-50-0 |
| Molecular Formula | AuCl4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO manufactures Tetrachloroauric acid tetrahydrate 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.
Tetrachloroauric acid tetrahydrate (CAS 1303-50-0) is a high-purity analytical reference standard with the molecular formula AuCl4H2OH and a molecular weight of 357.79 g/mol.
The molecular framework of Tetrachloroauric acid tetrahydrate (AuCl4H2OH) is characterized by chlorine substitution. 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. 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.
| Molecular Formula | AuCl4 H2O H |
| Molecular Weight | 357.79 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Freely soluble in water |
| Stability | Stable under recommended storage conditions |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |