6,7-Dichloroperfluoro-5-oxaheptanoic acid CAS 86556-81-2
| CAS No. | 86556-81-2 |
| Molecular Formula | C6HCl2F9O3 |
| Molecular Weight | 362.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 6,7-Dichloroperfluoro-5-oxaheptanoic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
6,7-Dichloroperfluoro-5-oxaheptanoic acid (CAS 86556-81-2) is a high-purity analytical reference standard with the molecular formula C6HCl2F9O3 and a molecular weight of 362.96 g/mol.
The molecular framework of 6,7-Dichloroperfluoro-5-oxaheptanoic acid (C6HCl2F9O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
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 | C6HCl2F9O3 |
| Molecular Weight | 362.96 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| 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.) | 1981 |
| Halogen Content | F/Cl-containing |
Recommended Standards
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- 2-((2-Amino-4-(trifluoromethyl)phenyl)(ethyl)amino)ethan-1-ol (CAS 1178787-47-7)
- 2-Methyl-1-[3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl]propan-1-amine (CAS 1036572-10-7)
- D-[Val]10-Semaglutide (CAS CATO-CPTD788630)
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