| CAS No. | 209542-49-4 |
| Molecular Formula | C8H16O5 |
| Molecular Weight | 192.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 192.21 g/mol gives m-PEG2-CH2CH2COOH distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
m-PEG2-CH2CH2COOH (CAS 209542-49-4), molecular formula C8H16O5 and molecular weight 192.21 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, m-PEG2-CH2CH2COOH is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 192.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
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.
CATO manufactures m-PEG2-CH2CH2COOH under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C8H16O5 |
| Molecular Weight | 192.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 2016 |