This preparation of Intrinsic Factor is purified from porcine stomach extracts and is supplied in a liquid form in distilled water. The material is >98% Intrinsic Factor, based on vitamin B12 binding assays using cobinamide and anti-intrinsic factor antibodies.
As a PRIMARY MANUFACTURER, Scripps is able to offer research-scale quantities of high quality antigens and antibodies, as presented on this website, yet also large, manufacturing-scale quantities. Materials are produced, packaged, and shipped from our facility in San Diego, California.
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