(4-Ethyl-3-hydroxy-5-oxotetrahydrofuran-3-yl)methyl acetate CAS 549545-98-4
| CAS No. | 549545-98-4 |
| Molecular Formula | C9H14O5 |
| Molecular Weight | 202.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 202.20 g/mol gives (4-Ethyl-3-hydroxy-5-oxotetrahydrofuran-3-yl)methyl acetate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(4-Ethyl-3-hydroxy-5-oxotetrahydrofuran-3-yl)methyl acetate (CAS 549545-98-4), molecular formula C9H14O5 and molecular weight 202.20 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (4-Ethyl-3-hydroxy-5-oxotetrahydrofuran-3-yl)methyl acetate (C9H14O5) 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 202.20 g/mol, it falls into the medium-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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C9H14O5 |
| Molecular Weight | 202.20 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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.) | 1984 |
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Recommended Standards
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- 3-Bromo-5-butoxyphenol (CAS 1881328-02-4)
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- Glutaryl-Gly-Gly-Phe-AMC (CAS 70996-06-4)
- 3-(Difluoromethyl)-4-iodopyridin-2-amine (CAS 1804438-79-6)
- Ipconazole Impurity 1 (CAS 191166-47-9)
- Autocamtide-2-Related Inhibitory Peptide TFA (CAS 167114-91-2（free base）)
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