pyrroporphyrin

例句：

1. 1. Pyrroporphyrin is a pigment found in many animals' skins and eyes.
   卟啉是一种在许多动物的皮肤和眼睛中发现的色素。
2. 2.The discovery of pyrroporphyrin has led to new insights into the function of hemoglobin.
   卟啉的发现为血红蛋白的功能研究提供了新的见解。
3. 3. In recent years, scientists have been exploring the potential applications of pyrroporphyrin in drug delivery systems.
   近年来，科学家们一直在探索卟啉在药物递送系统中的潜在应用。