a-linolenic acid molecule, structural chemical formula, ball-and-stick model, image omega-3

alinolenic acid alphalinolenic omega3 essential fatty molecule molecular structure chemical formula c18h30o2 isolated model bond skeletal compound structural built atomic flaxseed atom chemistry fat ala oil science omega polyunsaturated carbon soybean biochemistry rapeseed unsaturated hemp walnut oxygen herbal hydrogen vegetable canola nutrient