Phosphorous acid, dibutyl ester, compd. with 6(or 7)-methyl-1H-benzotriazole (1:1);Dibutyl hydrogen phosphonate, tolyltriazole salt;Dibutyl hydrogen phosphite, compound with methyl-1H-benzotriazole (1:1);Phosphorous acid, dibutyl ester, compd. with methyl-1H-benzotriazole (1:1);dibutyl hydrogen phosphite - 5-methyl-2H-benzotriazole (1:1)
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