1,4-Naphthalenediol, 2-methyl-, bis(dihydrogen phosphate), tetrasodium salt, hexahydrate 2-Methyl-1,4-naphthalenediol, bis(dihydrogen phosphate), tetrasodium salt, hexahydrate 6700-42-1 Menadiol sodium diphosphate hexahydrate Menadiol sodium phosphate hexahydrate