[1theta-(1alpha,4abeta,4balpha,10aalpha)]-methyl-7-(1-methylethylidene) 13-isopropylidene-podocarp-8(14)-en-15-oicaci 1-Phenanthrenecarboxylic acid, 1,2,3,4,4a,4b,5,6,7,9,10,10a-dodecahydro-1,4a-dimethyl-7-(1-methylethylidene)-, [1R-(1alpha,4abeta,4balpha,10aalpha)]- Abieta-8(14),13(15)-dien-18-oic acid Podocarp-8(14)-en-15-oic acid, 13-isopropylidene- NEOABIETIC ACID NEOABIETIC ACID, STANDARD FOR GC (1R)-1,2,3,4,4a,4bα,5,6,7,9,10,10aα-Dodecahydro-1,4aβ-dimethyl-7-(1-methylethylidene)-1α-phenanthrenecarboxylic acid