2,8-Methano-5H-1-benzopyran-5-one,6-benzoyl-2,3,4,4a,8,8a-hexahydro-7,8a-dihydroxy-2-methyl-4a,8-bis(3-methyl-2-butenyl)-3-(3-methyl-3-butenyl)-,[2R-(2a,3a,4ab,8a,8ab)]- is a chemical compound registered under CAS number 165966-99-4, with the molecular formula C33H42O5 and a molecular weight of about 518.69 g/mol. It is also known as (-)-Xerophenone B; Xerophenone B. FireTardant supplies 2,8-Methano-5H-1-benzopyran-5-one,6-benzoyl-2,3,4,4a,8,8a-hexahydro-7,8a-dihydroxy-2-methyl-4a,8-bis(3-methyl-2-butenyl)-3-(3-methyl-3-butenyl)-,[2R-(2a,3a,4ab,8a,8ab)]- for laboratory research and bulk production; product code 1089263. Send an inquiry for purity, packaging, price and lead time.