3,3,4,4,5,5,5-Heptafluoropentanoic acid CAS 679-46-9

Purity 97%+In StockPharmaceutical Standards
CAS No.679-46-9
Molecular FormulaC5H3F7O2
Molecular Weight228.06 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,3,4,4,5,5,5-Heptafluoropentanoic acid CAS 679-46-9 chemical structure

Description

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.

3,3,4,4,5,5,5-Heptafluoropentanoic acid (CAS 679-46-9), molecular formula C5H3F7O2 and molecular weight 228.06 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 3,3,4,4,5,5,5-Heptafluoropentanoic acid (C5H3F7O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 228.06 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 FormulaC5H3F7O2
Molecular Weight228.06 g/mol
Purity97%+
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityContains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1957
Halogen ContentF-containing

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