| CAS No. | 1623791-77-4 |
| Molecular Formula | C19H39O9P |
| Molecular Weight | 442.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 442.48 g/mol gives Boc-PEG4-phosphonic acid ethyl ester distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Boc-PEG4-phosphonic acid ethyl ester (CAS 1623791-77-4) is a high-purity analytical reference standard with the molecular formula C19H39O9P and a molecular weight of 442.48 g/mol.
The molecular framework of Boc-PEG4-phosphonic acid ethyl ester (C19H39O9P) is characterized by a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.
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.
CATO manufactures Boc-PEG4-phosphonic acid ethyl 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 | C19H39O9P |
| Molecular Weight | 442.48 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 0.5 |
| CAS Registry Year (est.) | 1993 |