10,12-Pentacosadiynoic Acid, 98%,1 G - 82550 Appearance, White to blue solid, Assay (HPLC area % at 226 nm) (%) 97.5 % - Min, Identification by GC/MS, Conforms CAS #:66990-32-7 UN#:CHEMICAL N Ship Name:10,12-PENTACOSADIYNOIC ACID Formula:CH!3(CH!2)!1!1C#CC#C(CH!2)!8COOH