Kalmar "Pteroylmonoglutamic acid" kuma ana kiranta da "Folic acid." Yana da bitamin B9 mai narkewa da ruwa wanda ke da mahimmanci ga yawancin tsarin halitta a cikin jiki, ciki har da kira da gyaran DNA, samar da kwayoyin jajayen jini, da kuma rigakafin lahani na haihuwa a cikin tayin mai tasowa. Sunan "pteroylmonoglutamic acid" ya samo asali ne daga tsarin sinadarai, wanda ya hada da zoben pteridine, para-aminobenzoic acid, da glutamic acid.