久久久观看免费视频,亚洲 欧美在线视,永久在线亚洲观看,三级日本久久高清

<fieldset id="jrwtf"></fieldset>
  • <pre id="jrwtf"><small id="jrwtf"><samp id="jrwtf"></samp></small></pre>

      • 
        

        <div id="jrwtf"></div>

      • Products

        Products

        α-ketoglutaric acid

        Product name: α-ketoglutaric acid

        CAS No.: 328-50-7

        Molecular formula: C5H6O5

        Structural formula:

        Quality index:

        Item Index
        Appearance white crystal or crystalline powder
        Assay(%) ≥99.0
        Melting point(ºC) 112-118
        Transmissivity(%) ≥98.0(10%H2O)
        Loss on Drying(%) ≤1.0
        Residue on ignition(%) ≤0.2
        Heavy metals(ppm) ≤10
        Arsenic(ppm) ≤1