Pentafluoroethyloxy-acetic acid methyl ester CAS 1301738-84-0
| CAS No. | 1301738-84-0 |
| Molecular Formula | C5H5F5O3 |
| Molecular Weight | 208.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Pentafluoroethyloxy-acetic acid methyl ester (CAS 1301738-84-0), molecular formula C5H5F5O3 and molecular weight 208.08 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, Pentafluoroethyloxy-acetic acid methyl ester is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 208.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C5H5F5O3 |
| Molecular Weight | 208.08 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
Related Pentafluoroethyloxy Standards
- 3-Pentafluoroethyloxy-pyrrolidine (CAS 1208078-44-7)
- Ethyl-(3-pentafluoroethyloxy-propyl)-amine (CAS 1208079-28-0)
- 3-Pentafluoroethyloxy-propan-1-ol (CAS 1246466-77-2)
- Pentafluoroethyloxy-acetic acid (CAS 1301738-82-8)
- 3-Pentafluoroethyloxy-propylamine (CAS 1208079-87-1)
- 3-Pentafluoroethyloxy-propionitrile (CAS 1286743-95-0)
- 2-Pentafluoroethyloxy-ethanol (CAS 91324-95-7)
- 2-Pentafluoroethyloxy-propionic acid ethyl ester (CAS 479024-71-0)
Recommended Standards
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- 3-(4-Fluorobenzoyl)-4-methylpyridine (CAS 158978-22-4)
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