*Represents the majority 85-90% of typical tall oil.
*abietic acid
**abieta-7,13-dien-18-oic acid
**13-isopropylpodocarpa -7,13-dien-15-oic acid
*Neoabietic acid
*Dehydroabietic acid
*Palustric acid
*Levopimaric acid
*Simplified formula CHO, or CHCOOH
*molecular weight 302