| CAS No. | 1336-21-6 |
| Molecular Formula | H4N |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO manufactures Ammonium Hydroxide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Ammonium Hydroxide (CAS 1336-21-6), molecular formula H4NHO and molecular weight 35.05 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an inorganic composition, Ammonium Hydroxide is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 35.05 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
| Molecular Formula | H4N HO |
| Molecular Weight | 35.05 g/mol |
| Purity | 1000mg/L in Water |
| 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.) | 1957 |
| Nitrogen Atoms | 1 |