Thiol-PEG5-acid CAS 1449390-67-3
| CAS No. | 1449390-67-3 |
| Molecular Formula | C13H26O7S |
| Molecular Weight | 326.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 326.41 g/mol gives Thiol-PEG5-acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Thiol-PEG5-acid (CAS 1449390-67-3), molecular formula C13H26O7S and molecular weight 326.41 g/mol, is a CATO reference standard with documented purity and traceability.
Thiol-PEG5-acid (C13H26O7S) contains a sulfone group, 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C13H26O7S |
| Molecular Weight | 326.41 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.) | 1992 |
| Sulfur Atoms | 1 |
Related Thiol Standards
- Thiol-PEG3-phosphonic acid ethyl ester (CAS 1360716-43-3)
- Thiol-PEG4-Boc (CAS 564476-33-1)
- Thiol-PEG3-NHBoc (CAS 1895922-68-5)
- Thiol-PEG6-alcohol (CAS 194425-46-2)
- Thiol-PEG3-Boc (CAS 1446282-39-8)
- Thiol-PEG6-acid (CAS 1347750-77-9)
- Thiol-PEG4-acid (CAS 749247-06-1)
- Thiol-PEG3-phosphonic acid (CAS 1360716-36-4)
Recommended Standards
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Why CATO?
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