| CAS No. | 68298-93-1 |
| Molecular Formula | C7H12O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
2-Propenoic acid, 2-methyl-, methyl ester, polymer with ethyl 2-propenoate and .alpha.-(2-methyl-1-oxo-2-propen-1-yl)-.omega.-hydroxypoly[oxy(methyl-1,2-ethanediyl)] (CAS 68298-93-1), molecular formula C7H12O3C5H8O2 and molecular weight 244.29 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Propenoic acid, 2-methyl-, methyl ester, polymer with ethyl 2-propenoate and .alpha.-(2-methyl-1-oxo-2-propen-1-yl)-.omega.-hydroxypoly[oxy(methyl-1,2-ethanediyl)] (C7H12O3C5H8O2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
| Molecular Formula | C7H12O3 2*C5H8O2 |
| Molecular Weight | 244.29 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 | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1976 |