D-Tartaric Acid (CAS 147-71-7): The Natural Dicarboxylic Acid That Acidifies, Chelates, and Builds Chiral Molecules
A practical supplier guide to D-Tartaric Acid (CAS 147-71-7, C4H6O6, MW 150.09, EINECS 205-695-6): a natural dicarboxylic acid used as a food acidulant, cosmetic pH adjuster and chelator, chiral resolving agent in pharma, and sequestering agent in industrial formulations. Covers the specification (white crystalline powder, mp 172-174 C, water-soluble ~100 mg/mL, pKa 3.0/4.4) and how it links to the citric/glycolic/brightening/cleanser cluster.
