丙酮酸肌酸盐性状 Description 白色或类白色结晶性粉末 White or off-white crystalline powder 干燥失重Loss on drying ≤0.5% 铁 Fe ≤10ppm 砷As ≤1ppm 重金属Heavy metals ≤10ppm 丙酮酸根Pyruvic radical ≥30.0% 肌酸 Creatine ≥58.0%