| CAS No. | 12789-45-6 |
| Molecular Formula | CH5O4P |
| Molecular Weight | 112.02 g/mol |
| 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.
Phosphoric acid methyl ester (CAS 12789-45-6) is a high-purity analytical reference standard with the molecular formula CH5O4P and a molecular weight of 112.02 g/mol.
Structurally, Phosphoric acid methyl ester (CH5O4P) contains a phosphate ester group. The molecule exhibits a degree of unsaturation (DBE) of -0.5, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 112.02 g/mol, it falls into the low-molecular-weight range.
CATO manufactures Phosphoric acid methyl ester 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.
| Molecular Formula | CH5O4P |
| Molecular Weight | 112.02 g/mol |
| Purity | >95% |
| 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.) | 1960 |