Christopher earned many prestigious awards for his achievements, most notably an Alfred P. Sloan Fellowship, a Guggenheim Fellowship, and the Leo Hendrik Baekeland Award of the American Chemical Society. In 1994, he received some of the American Chemical Society’s highest honors: the Arthur C. Cope Scholar Award and the Tolman Medal of the Southern California Section of the American Chemical Society. His research was supported throughout his career by numerous grants from the National Science Foundation and National Institutes of Health. He was highly prized as consultant to prominent companies such as Procter & Gamble, Occidental, and Clorox due to his expertise on oxidation chemistry and biology.