Bis-PEG4-acid; 4,7,10,13-tetraoxahexadecane-1,16-dioic acid; CAS No.: 31127-85-2; As a premier custom synthesis company, ChemShuttle provides 4,7,10,13-tetraoxahexadecane-1,16-dioic acid, which is classified as one of our key intermediates. This compound plays a crucial role in the development of various medicinal products. Our chemical online mall offers convenient access to a diverse range of organic chemicals, enabling researchers to advance their scientific endeavors. With a global presence, we support the discovery of novel pharmaceuticals by offering high-quality chemical solutions.