phytic acid

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phytic acid

[′fīd·ik ′as·əd]
(organic chemistry)
C6H6[OPO(OH)2]6 An acid found in seeds of plants as the insoluble calcium magnesium salt (phytin); derived from corn steep liquor; inhibits calcium absorption in intestine; used to treat hard water, to remove iron and copper from wines, and to inactivate trace-metal contaminants in animal and vegetable oils.