焦性没食子酸产品名称:焦性没食子酸CAS NO: 87-66-1含量:含量:≥99.2%; ≥99.5%; ≥99.8%,; 铁<0.5ppm; 钠<0.5ppm; 重金属<5 ppm熔点:132-135°C包装:25kg或40 kg纸板桶
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