analytical standard Synonym(s): ent -19-Hydroxy-8(17),13-labdadien-16,15-olide 19- O -β-D-glucopyranoside; D-Glucopyranosyloxy)methyl]decahydro-5,8a-dimethyl-2-methylene-1-naphthalenyl]ethyl]-2(5 H )-furanone Empirical Formula: C26H40O8 Formula Weight: 480.59...