Citric acid-D4,2-Hydroxypropane-1,2,3-tricarboxylic-1,1,3,3-d4 acid,"Widely distributed in plants and in animal tissues and fluids. Produced by mycological fermentation on an industrial scale using crude sugar solutions, such as molasses and strains of Aspergillus niger.;Labeled Citric Acid, intended for use as an internal standard for the quantification of Citric Acid by GC- or LC-mass spectrometry.",Citric Acid
