four antifolic acids-pteridine o/129 , methotrexate , cb2295 and cb2335-were examined for competitiveness and potency in three test systems-leuc . citrovorum and folinic acid , str . faecalis and folinic acid , and str . faecalis and pteroylglutamic acid .
C0023413
folinic acid
C0016410
pteroylglutamic