(3R)-5-Oxo-3-[(triethylsilyl)oxy]-1-cyclopentene-1-heptanoic Acid Methyl Ester CAS 118456-54-5
| CAS No. | 118456-54-5 |
| Molecular Formula | C19H34O4Si |
| Molecular Weight | 354.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(3R)-5-Oxo-3-[(triethylsilyl)oxy]-1-cyclopentene-1-heptanoic Acid Methyl Ester (CAS 118456-54-5) is a high-purity analytical reference standard with the molecular formula C19H34O4Si and a molecular weight of 354.56 g/mol.
Structurally, (3R)-5-Oxo-3-[(triethylsilyl)oxy]-1-cyclopentene-1-heptanoic Acid Methyl Ester (C19H34O4Si) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 354.56 g/mol, it falls into the moderately-high-molecular-weight range. 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).
As a certified reference material (CRM), (3R)-5-Oxo-3-[(triethylsilyl)oxy]-1-cyclopentene-1-heptanoic Acid Methyl Ester 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 | C19H34O4Si |
| Molecular Weight | 354.56 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
Recommended Standards
- 4-((tert-Butyldiphenylsilyl)oxy)hex-5-en-1-ol (CAS 113423-54-4)
- 6-[tert-Butyl(diphenyl)silyl]oxyhexanal (CAS 118794-70-0)
- Methyl 5-oxo-3-[(triethylsilyl)oxy]-1-cyclopentene-1-heptanoate (CAS 112713-92-5)
- Methyl 7-(3-((tert-butyldimethylsilyl)oxy)-5-oxocyclopent-1-en-1-yl)heptanoate (CAS 161978-56-9)
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