Hydroxy-PEG4-CH2COOtBu CAS 169751-72-8
| CAS No. | 169751-72-8 |
| Molecular Formula | C14H28O7 |
| Molecular Weight | 308.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Hydroxy-PEG4-CH2COOtBu (CAS 169751-72-8) is a high-purity analytical reference standard with the molecular formula C14H28O7 and a molecular weight of 308.37 g/mol.
The molecular framework of Hydroxy-PEG4-CH2COOtBu (C14H28O7) is characterized by 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.
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.
Physical & Chemical Properties
| Molecular Formula | C14H28O7 |
| Molecular Weight | 308.37 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 2005 |
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