Description
Specifications Table
Product Name – Pentafluoropropionic anhydride
Quantity/Pack Size – 5GR
Form – Liquid
Grade – 98%
Application – Derivatization reagent, analytical chemistry
Product Overview
Pentafluoropropionic anhydride (PFPA) is a highly reactive acylating agent used primarily in analytical chemistry for derivatization processes. With a purity of 98%, this colorless liquid offers exceptional reactivity due to its five fluorine atoms, which enhance electron-withdrawing effects and improve chromatographic separation. The anhydride form ensures rapid and efficient conversion of alcohols, amines, and phenols into their corresponding pentafluoropropionyl derivatives, making it ideal for gas chromatography-mass spectrometry (GC-MS) and high-performance liquid chromatography (HPLC) applications. Its low molecular weight and high volatility contribute to sharp, well-resolved peaks in chromatographic analysis. The compound is moisture-sensitive and should be handled under inert conditions to prevent hydrolysis. Stored in tightly sealed containers, it maintains stability for extended periods, ensuring consistent performance in laboratory settings.
FAQs
1. What is the primary function of pentafluoropropionic anhydride in lab applications?
It serves as a derivatizing agent that converts polar functional groups into volatile, thermally stable derivatives for improved chromatographic analysis.
2. Can this reagent be used for protein or peptide analysis?
While primarily used for small molecules, it can derivatize terminal amino groups in peptides under controlled conditions, though specialized protocols are recommended.
3. How does the fluorine content affect its reactivity compared to acetic anhydride?
The five fluorine atoms significantly increase the electrophilicity of the carbonyl carbon, making it far more reactive than acetic anhydride for nucleophilic substitution reactions.
4. What precautions should be taken during storage to maintain its purity?
Store in a desiccator or under nitrogen atmosphere at 2-8°C, away from moisture and oxidizing agents, to prevent hydrolysis and degradation.
5. Are there any known incompatible solvents for this anhydride?
Avoid protic solvents like water or alcohols, as they will react violently with the anhydride, leading to decomposition and loss of reactivity.
