| CAS No. | 1304-85-4 |
| Molecular Formula | 4*H2BiNO5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of Bismuth(III) subnitrate is closely related to an inorganic composition in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Bismuth(III) subnitrate (CAS 1304-85-4), a certified reference material (molecular formula H2BiNO5HBiO2, MW 546.98 g/mol) for analytical method development and quality control.
Bismuth(III) subnitrate (H2BiNO5HBiO2) contains an inorganic composition. It is notably hygroscopic; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | 4*H2BiNO5 HBiO2 |
| Molecular Weight | 546.98 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |