Hydroxy-PEG5-acid CAS 2079768-50-4
| CAS No. | 2079768-50-4 |
| Molecular Formula | C13H26O8 |
| Molecular Weight | 310.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Hydroxy-PEG5-acid (CAS 2079768-50-4), a certified reference material (molecular formula C13H26O8, MW 310.34 g/mol) for analytical method development and quality control.
Hydroxy-PEG5-acid (C13H26O8) 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.
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 | C13H26O8 |
| Molecular Weight | 310.34 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.) | 1997 |
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Recommended Standards
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- 2-(5-Fluoro-2-methoxyphenyl)pentan-2-ol (CAS 1443303-20-5)
- 8-Bromo-4-hydroxy-3-methylquinolin-2(1H)-one (CAS 1259439-93-4)
- (1H-benzo[d][1,2,3]triazol-1-yl)methyl butylcarbamodithioate (CAS 300679-72-5)
- 4-(tert-Butyl)-5-chloropyrimidin-2-amine (CAS 1095823-83-8)
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- 4,4'-Bis(4-amino-1-naphthylazo)-2,2'-stilbenedisulfonic Acid (CAS 5463-64-9)
- Semaglutide impurity 58 (CAS CATO-C4X-222658)
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