Ethyl 3-hydroxy-5-methylhexanoate CAS 40309-43-1
| CAS No. | 40309-43-1 |
| Molecular Formula | C9H18O3 |
| Molecular Weight | 174.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 3-hydroxy-5-methylhexanoate (CAS 40309-43-1), molecular formula C9H18O3 and molecular weight 174.24 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H18O3, Ethyl 3-hydroxy-5-methylhexanoate contains 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 174.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.
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.
As a certified reference material (CRM), Ethyl 3-hydroxy-5-methylhexanoate 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.
Physical & Chemical Properties
| Molecular Formula | C9H18O3 |
| Molecular Weight | 174.24 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.) | 1968 |
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