The present invention relates to an alkaline earth metal salt or an organic amine salt of a compound represented by the formula : wherein R
1
and R
2
are each a hydrogen atom, a halogen atom, or an optionally substituted linear hydrocarbon group; ring A is an optionally further substituted benzene ring; B is an optionally substituted benzene ring; R is a carboxyl group or a linear hydrocarbon group substituted with a carboxyl group and the like.
本发明涉及一种化合物的碱土
金属盐或有机胺盐,该化合物的
化学式为:其中R1和R2分别是氢原子、卤素原子或可选择取代的直链烃基;环A是可选择进一步取代的苯环;B是可选择取代的苯环;R是羧基或取代有羧基的直链烃基等。