Description

Cholestyramine or colestyramine (Questran, Questran Light, Cholybar) is a bile acid sequestrant, which binds bile in the gastrointestinal tract to prevent its reabsorption. The resin is a strong anion exchange resin, which means that it can exchange its chloride anions with anionic bile acids in the gastrointestinal tract and bind them strongly in the resin matrix. The functional group of the anion exchange resin is a quaternary ammonium group attached to an inert styrene-divinylbenzene copolymer. We are a leading supplier of Cholestyamine in China, our product meets standard of USP, the detail as following: Test items Standard Appearance White or off-white powder, odorless or some amine smell; Moisture absorption Identification IR absorption spectrogram comply with reference standard spectrogram Test Acidity PH 4.**6.0 Dialysis quaternary Complies Ammonium Chloride *3.***7.0% (on drying basis) Loss on drying *2.0% max Residue on ignition 0.1% max Heavy metals Complies Mircobial Test Total plate count ***0/g max Yeast and Mold **0/g max ***** Negative Active Acarus Negative Exchange capacity Exchange sodium taurocholate per gram should be 2.**2.2g on drying basis