Thiamine Impurity E is an impurity of B class vitamins such as thiamine. Thiamine is important for primary metabolism for all living organisms and is also used in the treatment or prevention of beriberi.
Certified pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards. Tetrahydrofuran is a saturated cyclic ether with a potential use as a biofuel. It is used for the manufacture of polyurethanes.