| CAS No. | 7681-38-1 |
| Molecular Formula | HO4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of 7681-38-1 BU8V88OWIQ Sodium bisulfate Sulfuric acid, monosodium salt Sodium hydrogensulphate Sulfuric acid, sodium salt (1:1) AI3-08654 BIF Bisulfate of soda Caswell No. 742 EINECS 231-665-7 EPA Pesticide Chemical Code 073201 Fanal GBS Monosodium hydrogen sulfate Monosodium sulfate Niter cake Nitre cake NSC 71192 Sodium acid sulfate Sodium bisulfate, fused Sodium bisulfate, solid(DOT) Sodium hydrogen sulfate Sodium hydrogen sulfate (NaHSO4) Sodium hydrogen sulfate, solid (DOT) Sodium hydrosulfate Sodium pyrosulfate Sodium sulfate, NaHSO4 WC-00 WC-Klosettreiniger WC-Perfect WC-Super UNII-BU8V88OWIQ EC 231-665-7 is closely related to a sulfone group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
7681-38-1 BU8V88OWIQ Sodium bisulfate Sulfuric acid, monosodium salt Sodium hydrogensulphate Sulfuric acid, sodium salt (1:1) AI3-08654 BIF Bisulfate of soda Caswell No. 742 EINECS 231-665-7 EPA Pesticide Chemical Code 073201 Fanal GBS Monosodium hydrogen sulfate Monosodium sulfate Niter cake Nitre cake NSC 71192 Sodium acid sulfate Sodium bisulfate, fused Sodium bisulfate, solid(DOT) Sodium hydrogen sulfate Sodium hydrogen sulfate (NaHSO4) Sodium hydrogen sulfate, solid (DOT) Sodium hydrosulfate Sodium pyrosulfate Sodium sulfate, NaHSO4 WC-00 WC-Klosettreiniger WC-Perfect WC-Super UNII-BU8V88OWIQ EC 231-665-7 (CAS 7681-38-1), molecular formula HO4SNa and molecular weight 120.05 g/mol, is a CATO reference standard with documented purity and traceability.
7681-38-1 BU8V88OWIQ Sodium bisulfate Sulfuric acid, monosodium salt Sodium hydrogensulphate Sulfuric acid, sodium salt (1:1) AI3-08654 BIF Bisulfate of soda Caswell No. 742 EINECS 231-665-7 EPA Pesticide Chemical Code 073201 Fanal GBS Monosodium hydrogen sulfate Monosodium sulfate Niter cake Nitre cake NSC 71192 Sodium acid sulfate Sodium bisulfate, fused Sodium bisulfate, solid(DOT) Sodium hydrogen sulfate Sodium hydrogen sulfate (NaHSO4) Sodium hydrogen sulfate, solid (DOT) Sodium hydrosulfate Sodium pyrosulfate Sodium sulfate, NaHSO4 WC-00 WC-Klosettreiniger WC-Perfect WC-Super UNII-BU8V88OWIQ EC 231-665-7 (HO4SNa) contains a sulfone group. It is notably hygroscopic; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
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 | HO4S Na |
| Molecular Weight | 120.05 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1959 |
| Sulfur Atoms | 1 |