| CAS No. | 1807505-35-6 |
| Molecular Formula | C11H24O8S |
| Molecular Weight | 316.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
m-PEG5-sulfonic acid (CAS 1807505-35-6), molecular formula C11H24O8S and molecular weight 316.37 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H24O8S, m-PEG5-sulfonic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 316.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.
As a certified reference material (CRM), m-PEG5-sulfonic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
| Molecular Formula | C11H24O8S |
| Molecular Weight | 316.37 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1995 |
| Sulfur Atoms | 1 |