| CAS No. | 16527-81-4 |
| Molecular Formula | C2H5O4P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of Phosphoric acid, monoethyl ester, zinc salt is closely related to a phosphate ester group, a carboxylic acid group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Phosphoric acid, monoethyl ester, zinc salt (CAS 16527-81-4) is a high-purity analytical reference standard with the molecular formula C2H5O4PZn and a molecular weight of 189.41 g/mol.
Owing to a phosphate ester group, a carboxylic acid group, an ether linkage, Phosphoric acid, monoethyl ester, zinc salt is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 189.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
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 | C2H5O4P Zn |
| Molecular Weight | 189.41 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) | 0.5 |
| CAS Registry Year (est.) | 1961 |