Complaint
Propylparaben Typical Properties
ITEM | STANDARD |
Appearance | White crystal powder |
Assesment | HPLC |
Assay | 98%-102% |
Organic impurities | p-Hydroxybenzoic acid NMT 0.5% |
Unspecified impurities NMT 0.5% | |
Total impurities NMT 1.0% | |
Residue, % | ≤0.1 |
Melting Point, ºC | 96-99 |
Acid | Passed |
Appearance of solution | Passed |
Residual Solvents | 3000 ppm Me thanol maximum |
Heavy Metal (Pb) | ≤10ppm |
Loss on drying, % | ≤0.50 |
