Formaldehyde Sodium Bisulfite Hemihydrate CAS 63148-74-3
| CAS No. | 63148-74-3 |
| Molecular Formula | 2*CH4O4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 153.10 g/mol gives Formaldehyde Sodium Bisulfite Hemihydrate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Formaldehyde Sodium Bisulfite Hemihydrate (CAS 63148-74-3), molecular formula CH4O4SNaH2O and molecular weight 153.10 g/mol, is a CATO reference standard with documented purity and traceability.
Formaldehyde Sodium Bisulfite Hemihydrate (CH4O4SNaH2O) 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.
Physical & Chemical Properties
| Molecular Formula | 2*CH4O4S 2*Na H2O |
| Molecular Weight | 153.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | -1.0 |
| CAS Registry Year (est.) | 1975 |
| Sulfur Atoms | 1 |
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