Reference substance

Reagents Material Acid-base indicator M-Methyl red powder CAS No.:20691-84-3 Products Description [Product Name]: M-Methyl red [Apperance]: Red powder [Cas No.]: 20691-84-3 [M.F.]: C15H15N3O2 Chemical Reagent M-methyl red is also called 3-((4-(dimethylamino)phenyl)azo)benzoic acid, and its molecular formula is C15H15N3O2. The molecular weight is 269.2985, which is a chemical dye,Pharmaceutical Intermediates Ingredients. Application Standard Substance, Acid-base indicator, pH color change range...

Animal Extract Bilirubin powder(formerly referred to as haematoidin) is the yellow breakdown product of normal heme catabolism, caused by the body's clearance of aged red blood cells which contain hemoglobin. Active Pharmaceutical Ingredients Bilirubin powder is excreted in bile and urine, and elevated levels may indicate certain diseases. It is also responsible for the brown color of feces, via its conversion to stercobilin, and the background straw-yellow color of urine via its breakdown...

Medicine Raw Material DMSA is the organosulfur compound with the formula HO2CCH(SH)CH(SH)CO2H. This colorless solid contains two carboxylic acid and two thiol groups, the latter being responsible for its mildly unpleasant odour. It occurs in two diastereomers, meso and the chiral dl forms. Active Pharmaceutical Ingredients The meso isomer is used as achelating agent. The acid is most often used as a treatment for heavy metal toxicity, and is a water soluble and non-toxic substance. High Quality...