(1-Hydroxyethylidene)bisphosphonic acid, tetrasodium salt (1-Hydroxyethylidene)diphosphonic acid, tetrasodium salt 1-Hydroxyethylidene-1,1-diphosphonic acid, tetrasodium salt 104365-97-1 146437-16-3 3794-83-0 DIPHOSPHONIC ACID, (1-HYDROXYETHYLIDENE)-, TETRASODIUM SALT Defloc EN 43 Dequest 2016 EINECS 223-267-7 Ethane-1-hydroxy-1,1-diphosphonic acid, tetrasodium salt Phosphonic acid, (1-hydroxyethylidene)bis-, tetrasodium salt Sequion 10Na4 Tarpinel 4NL Tetrasodium (1-hydroxyethylidene)bisphosphonate Tetrasodium 1-hydroxyethane-1, 1-diphosphonate Tetrasodium 1-hydroxyethylidene-1,1-diphosphonate Tetrasodium etidronate Turpinal 4NL