Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take chloroquine with all of your drugs and health problems. Chloroquine over the counter 60 increase in malaria deaths after chloroquine failure Technical Service Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others. Sigma-Aldrich offers a number of Chloroquine diphosphate salt products. View information & documentation regarding Chloroquine diphosphate salt, including CAS, MSDS & more. Chloroquine is a member of quinolone family and is a weak intercalating agent. Chloroquine is used for treating amebiasis, rheumatoid arthritis, discoid and systemic lupus erythematosus. Application DNA intercalator. Also used to increase transfection efficiency. Chloroquine diphosphate salt has been used • in in vitro antiplasmodial assays For all uses of chloroquine: WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Do not start, stop, or change the dose of any drug without checking with your doctor. Chloroquine solubility Chloroquine - FDA prescribing information, side effects and uses, Chloroquine diphosphate salt Sigma-Aldrich Scarring alopecia plaquenil dosageInteraction plaquenil and acetimenophin SAR OF CHLOROQUINE. Addition of –CH3 group at position #2 will reduce the activity as in santoquine. Addition of –CH3 group at position #8 will reduce the activity / totally loss the activity. Introduction of any other groups into the quinoline nucleus will reduce the activity. Structure Activity Relationship of CHLOROQUINE. Chloroquine diphosphate salt powder or crystals, 98.5-101.. Chloroquine - Wikipedia. Quinine is a quinidine alkaloid isolated from the bark of the cinchona tree. Quinine has many mechanisms of action, including reduction of oxygen intake and carbohydrate metabolism; disruption of DNA replication and transcription via DNA intercalation; and reduction of the excitability of muscle fibers via alteration of calcium distribution. Chloroquine phosphate is supplied as a crystalline solid. Aqueous solutions of chloroquine phosphate can be prepared by directly dissolving the crystalline solid in aqueous buffers. The solubility of chloroquine phosphate in PBS, pH 7.2, is approximately 10 mg/ml. We do not recommend storing the aqueous solution for more than one day. PKa 8.4 and 10.8 for chloroquine base at 20 °C 2. This product is a member of the quinoline family with multiple applications. It was originally used as an antimalarial compound.3 It kills the erythrocytic forms of malaria parasites at all stages of development, but does not affect the sporozoites.