Many researchers have investigated its extrac-tion, chemistry and composition . CNSL contains four major
components: 3-pentadecenyl phenol (cardanol), 5-pentadecenyl
resorcinol (cardol), 6-pentadecenyl salicylic acid (anacardic acid)
and2-methyl, 5-pentadecenyl resorcinol (2-methyl cardol). The
application of CNSL as a full replacement for synthetic resins is of
immense interest in these days of diminishing petroleumreserves.
About 90% consists of anacardic acid, cardanol and cardol is CNSL