Bisphenol A

Bisphenol A (BPA, CAS 80-05-7) is an organic synthetic compound with the molecular formula C15H16O2, appearing as a colorless solid with moderate solubility in organic solvents but low water solubility. It serves as a key monomer in polycarbonate plastics and epoxy resins used across consumer and industrial goods, and functions as a color developer in thermal paper for receipts and other heat-sensitive printing. Supplied at industrial grade to Chinese Pharmacopoeia (ChP) standards by Shanghai Baojiarui Chemical Co., Ltd, which sources rather than manufactures the product directly, it is currently sold into the Asian market; given potential endocrine-disrupting effects, its use in food-contact materials is regulated in many regions.