3-(Diethoxyphosphoryloxy)-1,2,3-benzotriazin-4(3H)-one3-(二乙氧基磷酰氧基)-1,2,3-苯并三嗪-4-酮3-(Diethoxyphosphoryloxy)-1,2,3-benzotriazin-4(3H)-oneDEPBT3-Diethoxyphosphoryloxy-1,2,3-benzotriazin-4(3H)-one3-(二乙氧基磷酰氧基)-1,2,3-苯并三嗪-4(3H)-酮Diethyl (4-oxobenzo[d][1,2,3]triazin-3(4H)-yl) phosphate