Patent ID: 9732107
Date: 2017-08-15
CPC Classifications: A61K,A61P,C07B,C07D,C07F

Claim:
1. A method for producing β-hematin comprising adding an HCl aqueous solution to a solution of hemin chloride dissolved in an NaOH aqueous solution, adding acetic acid dropwise thereto so as to adjust the pH level to 4 to 6, and heating the resulting mixture to 80° C. or higher, wherein the β-hematin crystals have a needle-like morphology, an average particle size of 0.6 to 1.2 μm, and exhibit main peaks characteristics for angles of diffraction (2θ) of 7.4°, 12.2°, 21.6°, and 24.1° in an X-ray diffraction pattern obtained by powder X-ray diffractometry with Cu-Kα rays, wherein each peak includes a plus-minus 0.2° diffraction angle.