About the quality, the bromine content of our HBCD is over 74%, the someride content is over ... 98%, the gamma content is over 85%. 1,2,5,6,9,10-Hexabromocyclododecane (HBCD) Molecular formula:C12H18Br6 Molecular weight:641 ... bags,1000kg big bags,900kg big bags HBCD ----flame retardant of EPS and XPS foam masterbatch and textile----CASNO:3194-55 ...