AVJ6ZST7L6 7790-62-7 Potassium pyrosulfate Dipotassium disulphate Potassium pyrosulfate (K2S2O7) Pyrosulfuric acid, dipotassium salt Disulfuric acid, potassium salt (1:2) Disulfuric acid, dipotassium salt EINECS 232-216-8 Dipotassium disulfate Dipotassium pyrosulfate Potassium disulfate (K2S2O7) Potassium sulfate (K2S2O7) UNII-AVJ6ZST7L6 EC 232-216-8 CAS 7790-62-7
| CAS No. | 7790-62-7 |
| Molecular Formula | O7S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
AVJ6ZST7L6 7790-62-7 Potassium pyrosulfate Dipotassium disulphate Potassium pyrosulfate (K2S2O7) Pyrosulfuric acid, dipotassium salt Disulfuric acid, potassium salt (1:2) Disulfuric acid, dipotassium salt EINECS 232-216-8 Dipotassium disulfate Dipotassium pyrosulfate Potassium disulfate (K2S2O7) Potassium sulfate (K2S2O7) UNII-AVJ6ZST7L6 EC 232-216-8 (CAS 7790-62-7), molecular formula O7S2K and molecular weight 215.21 g/mol, is a CATO reference standard with documented purity and traceability.
AVJ6ZST7L6 7790-62-7 Potassium pyrosulfate Dipotassium disulphate Potassium pyrosulfate (K2S2O7) Pyrosulfuric acid, dipotassium salt Disulfuric acid, potassium salt (1:2) Disulfuric acid, dipotassium salt EINECS 232-216-8 Dipotassium disulfate Dipotassium pyrosulfate Potassium disulfate (K2S2O7) Potassium sulfate (K2S2O7) UNII-AVJ6ZST7L6 EC 232-216-8 (O7S2K) contains a sulfone group. It is notably hygroscopic; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
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.
Physical & Chemical Properties
| Molecular Formula | O7S2 2*K |
| Molecular Weight | 215.21 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.) | 1959 |
| Sulfur Atoms | 2 |
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Why CATO?
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