PROBLEM TO BE SOLVED: To provide an organic phosphate compound capable of adding excellent mechanical strength, adhesiveness and adhesive durability when applied for a dental material.SOLUTION: There is provided a compound (I) represented by the general formula (1), where R1, R2 and R3 are each independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, R4 represents a hydrocarbon group having 5 to 30 carbon atoms, R5 and R6 are each independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, which may have a substituent or a metal atom, A represents one kind selected from a group consisting of -COO-, -OCO- and -O-, X represents an oxygen atom or a sulfur atom, m represents an integer of 2 to 6, and two phosphate groups or phosphoric acid ester group [-O-P(X)(OR5)(OR6)] bind to R4 via 5 to 30 carbon atoms in R4 each other.COPYRIGHT: (C)2015,JPO&INPIT【課題】歯科用材料に適用した場合に、優れた機械的強度、接着性、及び接着耐久性を付与しうる有機リン酸化合物を提供する。【解決手段】下記一般式(1)で表される化合物(I)。(式中、R1、R2及びR3は、それぞれ独立して水素原子又は炭素数1~20の炭化水素基を表し、R4は炭素数5~30の炭化水素基を表し、R5及びR6は、それぞれ独立して水素原子、置換基を有してもよい炭素数1~20の炭化水素基、又は金属原子を表し、Aは-COO-、-OCO-、及び-O-からなる群から選択される1種を表し、Xは酸素原子又は硫黄原子を表し、mは2~6の整数を表し、2つのリン酸基又はリン酸エステル基〔-O-P(X)(OR5)(OR6)〕は、互いに、R4中の5~30個の炭素原子を隔ててR4に結合している。)【選択図】なし
