Profile: Shanghai Hanfeng Chemical Scientific Co., Ltd. is a manufacturer of organic optoelectronic chemicals, especially for organic light emitting diode and organic photo voltaic materials, pharmaceutical intermediates, and fine chemicals. Our products include titanium oxide phthalocyanine, vanadyl phthalocyanine, aluminum phthalocyanine chloride, zinc phthalocyanine, and butyric acid methyl ester.