W321DU8DF9 25736-86-1 9XEM35MI4M PEG-5 methacrylate PEG-8 methacrylate Poly(oxy-1,2-ethanediyl), alpha-(2-methyl-1-oxo-2-propen-1-yl)-omega-hydroxy- Poly(oxy-1,2-ethanediyl), alpha-(2-methyl-1-oxo-2-propenyl)-omega-hydroxy- Methacrylic acid, polyethylene glycol monoester UNII-9XEM35MI4M UNII-W321DU8DF9 CAS 25736-86-1
| CAS No. | 25736-86-1 |
| Molecular Formula | C6H10O3 |
| Molecular Weight | 130.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
W321DU8DF9 25736-86-1 9XEM35MI4M PEG-5 methacrylate PEG-8 methacrylate Poly(oxy-1,2-ethanediyl), alpha-(2-methyl-1-oxo-2-propen-1-yl)-omega-hydroxy- Poly(oxy-1,2-ethanediyl), alpha-(2-methyl-1-oxo-2-propenyl)-omega-hydroxy- Methacrylic acid, polyethylene glycol monoester UNII-9XEM35MI4M UNII-W321DU8DF9 (C6H10O3) contains a carboxylic acid group, a hydroxyl 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.
W321DU8DF9 25736-86-1 9XEM35MI4M PEG-5 methacrylate PEG-8 methacrylate Poly(oxy-1,2-ethanediyl), alpha-(2-methyl-1-oxo-2-propen-1-yl)-omega-hydroxy- Poly(oxy-1,2-ethanediyl), alpha-(2-methyl-1-oxo-2-propenyl)-omega-hydroxy- Methacrylic acid, polyethylene glycol monoester UNII-9XEM35MI4M UNII-W321DU8DF9 (CAS 25736-86-1) is a high-purity analytical reference standard with the molecular formula C6H10O3 and a molecular weight of 130.14 g/mol.
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.
Physical & Chemical Properties
| Molecular Formula | C6H10O3 |
| Molecular Weight | 130.14 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) | 2.0 |
| CAS Registry Year (est.) | 1964 |
Recommended Standards
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- Semaglutide Impurity 187 (CAS CATO-C4X-2226187)
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