D-Calcium Pantothenate Formula: C18H32O10N2Ca Structure: Appearance: A white powder. Specific rotation : +25?-+28.5? Loss of drying : <=5.0%PCT Content of Calcium : 8.20~8.60%PCT Content of Nitrogen : 5.70~6.00%PCT Heavy metal : <=20ppm Clarity : up to standard Package: 25kg/barrel