1-Naphthaleneheptanoic acid, 1,2,6,7,8,8a-hexahydro-β,δ,6-trihydroxy-2-methyl-8-[(2S)-2-methyl-1-oxobutoxy]-, sodium salt (1:1), (βR,δR,1S,2S,6S,8S,8aR)- [81131-70-6] 98%