| CAS No. | 42541-96-8 |
| Molecular Formula | C13H18O4 |
| Molecular Weight | 238.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (R,Z)-Methyl 7-(3-hydroxy-5-oxocyclopent-1-en-1-yl)hept-5-enoate.
CATO supplies (R,Z)-Methyl 7-(3-hydroxy-5-oxocyclopent-1-en-1-yl)hept-5-enoate (CAS 42541-96-8), a certified reference material (molecular formula C13H18O4, MW 238.28 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, (R,Z)-Methyl 7-(3-hydroxy-5-oxocyclopent-1-en-1-yl)hept-5-enoate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 238.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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), (R,Z)-Methyl 7-(3-hydroxy-5-oxocyclopent-1-en-1-yl)hept-5-enoate 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 | C13H18O4 |
| Molecular Weight | 238.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |