| CAS No. | 76483-21-1 |
| Molecular Formula | C3H9O4P |
| Molecular Weight | 140.07 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
The occurrence of Tenofovir disoproxil Impurity 56 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.
Tenofovir disoproxil Impurity 56 (CAS 76483-21-1) is a certified pharmaceutical impurity reference standard with the molecular formula C3H9O4P and a molecular weight of 140.07 g/mol.
Tenofovir disoproxil Impurity 56 (C3H9O4P) contains a phosphate ester group, a carboxylic acid group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Tenofovir disoproxil Impurity 56 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 | C3H9O4P |
| Molecular Weight | 140.07 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.) | 1978 |