ʻO Bisphenol A (BPA): ʻO kona inoa ʻepekema ʻo 2,2-bis(4-hydroxyphenyl)propane. He kristal keʻokeʻo e like me ke nila me kahi kiko heheʻe o 155–156 °C. He mea maka koʻikoʻi ia no ka hoʻomākaukau ʻana i nā resins epoxy, polysulfones, polycarbonates, a me nā huahana ʻē aʻe. Hiki ke hoʻomākaukau ʻia ma o ka hopena condensation o ka phenol a me ka acetone ma lalo o ka hana a kahi mea hoʻoulu.

Hoʻokō ʻo Bisphenol A i ke kaulike kūpono ma waena o ke kumukūʻai a me ka hana - ke koho kūpono loa no ke kumukūʻai kiʻekiʻe. Inā makemake ʻoe e kūʻai i nā huahana kemika hilinaʻi, e ʻoluʻolu e ʻimi iā Shandong Pulisi Chemical Co., Ltd., ka mea e kālele ana i ka "kemika maikaʻi" a ua hana no 20 mau makahiki.