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          1. Welcome to visit: Shandong Yino Biologic Materials Co., Ltd.中文  /  English
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            • delta-valerolactone
              δ-valerolactone is a multi-purpose fine chemical intermediate, widely used in pharmaceutical intermediates (such as for the synthesis of pyranidine, cilostazol, etc.), flavors and fragrances, polyester, polyurethane, special solvents, coatings and ot
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