Sir Alexander Robertus Todd was a prominent Scottish biochemist who won the Nobel Prize in Chemistry in 1957 for his research on the structure of nucleotides and nucleotide coenzymes. Some of the synonyms for Sir Alexander Robertus Todd include biochemist, chemist, Nobel laureate, researcher, scientist, and academic. He was also a Fellow of the Royal Society, a member of the Order of Merit, and a Knight Bachelor. His contributions to the field of biochemistry and his pioneering work on the structure of complex molecules have greatly impacted the study of chemistry and other related fields in science.