| CAS No. | 7632-00-0 |
| Molecular Formula | NO2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
Sodium Nitrite (CAS 7632-00-0) is a high-purity analytical reference standard with the molecular formula NO2Na and a molecular weight of 69.00 g/mol.
Based on its molecular formula NO2Na, Sodium Nitrite contains an inorganic composition; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 69.00 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Sodium Nitrite meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
| Molecular Formula | NO2 Na |
| Molecular Weight | 69.00 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Freely soluble in water |
| Stability | Light-sensitive; avoid direct strong light |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 1 |