Though Chandler is perhaps most associated with the School of Mines, he also, starting in 1867, began lecturing in Chemistry for the New York College of Pharmacy. He acted as president of this school until 1897 when it formalized its relationship to Columbia University and was incorporated as a University Faculty in 1897. He also lectured in Columbia's College of Physicians and Surgeons in 1872 where he taught chemistry and medical jurisprudence and called for a more rigorous scientific training for medical professionals. In addition to his instructional and administrative duties, Chandler also started a Chemical Museum, later named the Chandler Chemical Museum in his honor, to highlight the accomplishments of modern industrial and analytic chemistry.