Willstätter went on to study chemistry at Munich University in Germany and later won the Nobel prize for discoveries made in connection with his studies of plant pigments, particularly chlorophyll.
Willstätter jätkas keemiaõpinguid Saksamaal Müncheni ülikoolis, hiljem aga sai Nobeli auhinna avastuste eest, mida ta oli teinud ühenduses taimepigmentide, eeskätt klorofülli uuringutega.