Product Name: photoinitiator 184 / photocure 184 Chemical Name: 1-Hydroxy cyclohexyl phenyl ketone CAS No.: 947-19-3 Molecular Weight: 204.3 Appearance: White crystalline powder Assay ( GC) : 99% min. Package 20 Kgs net/ fiber drum. Uses Highly efficient photoinitiator for UV-curable systems with non-yellowing durability and longer shelf life. Storage Shelf life for at least 1 year when it’ s stored in closed containers in room temperature and dry conditions. Health and Safety Information Please refer to our Material Safety Data Sheet.