
Propyl 4-hydroxybenzoate or propylparaben is a very useful compound in cosmetics and often used as a preservative in lotions and creams. The reverse-phase column Legacy L1 was used to retain propyl 4-hydroxybenzoate. Comparisons to Phenomenex columns are available upon request.
| Mobile Phase | MeCN – 430% |
|---|---|
| Buffer | NaH2PO4 pH 2.5 – 10 mM |
| Flow Rate | 1.0 ml/min |
| Detection | UV, 210 nm |
| Class of Compounds | Preservative, Hydrophobic, Ionizable |
| Analyzing Compounds | Phenoxymethylpenicillin |