((1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrayl)tetrakis(methylene))tetrakis(phosphonic acid); CAS No.: 91987-74-5; Specializing in custom chemical synthesis companies, ChemShuttle delivers ((1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrayl)tetrakis(methylene))tetrakis(phosphonic acid), a complex building block for medicinal chemistry. Our focus on precision ensures reliable supply for researchers.