Protamine Sulfate USP


clupeine sulfate;protamine sulfate (ex salmon);protamine sulfate herring;
protamine sulfate salmon;protamine sulfate,
salmon milt;protamine sulfate salt;salmine;salmine sulfate

Technical Data

CAS Number: 53597-25-4
EC Number: 232-726-0

FabriChem Specifications

Assay≥ 100
USP Heparin units / mg
Nitrogen22.5 – 25.5%
Loss on Drying≤ 5.0%
UV Absorption
(260~280 nm)
≤ 0.1
Sulfate16 – 22%
Bacterial Endotoxins< 7.0 EU/mg
Residual Solvent
≤ 5,000 ppm


Protamine Sulfate is a small cationic protein that binds and precipitates DNA. It may be used for the removal of DNA from protein samples or the purification of DNA binding proteins. Protamine Sulfate has antibacterial properties. It is on the World Health Organization’s List of Essential Medicines, a list of the most important medication needed in a basic health system.