Product Description Octadecamethylcyclononasiloxane Other Details Molecular Formula: C18H54O9Si9 Molecular Weight: 667.4 CAS Number: 556-71-8 Minimum Purity: >98.0%(GC) UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 1ml Leadtime:20 Days Sizes 2: 5ml Leadtime:20 Days Sizes 3: 0 Leadtime:0