Features of Cinnamic Acid Product Information Product Name: China cinnamic acid Chemical Formula: C9H8O2 CAS No.: 621-82-9 Dangerous Grade: None Technical Data: Item Specification Appearance white to slightly yellow powder Assay 99%min. Melting range 132℃min. Package and Storage: 25kg/bag Store in a cool, dry place. Store in a tightly closed container. Application /Application Industries: Used for making flavors and pharmaceuticals There are many cinnamic acid powder suppliers , but we are one of the best choices for you.