嗜苯胺颗粒（azurophil，或Azurophilic granule）是一种苯胺染色下产生的构造。在勃艮地染色法和梅洛染色法下的白血球和染色质会成现天青色。嗜苯胺颗粒可能会含有myeloperoxidase、phospholipase A2、酸水解酶、Elastase、防御素、中性丝氨酸蛋白酶、杀菌/通透性增强蛋白质、 溶菌酶、cathepsin G、proteinase 3，和蛋白糖。嗜中性球的嗜苯胺颗粒内涵有许多抗菌的防御素，可以和吞噬病原体的食胞融合。

嗜苯胺颗粒又被称为「原发性颗粒」（primary granules）

An azurophil is a cellular object readily stainable with a Romanowsky stain. In white blood cells and hyperchromatin, staining imparts a burgundy or merlot coloration. Neutrophils in particular are known for containing azurophils loaded with a wide variety of anti-microbial defensins that fuse with phagocytic vacuoles. Azurophils may contain myeloperoxidase, phospholipase A2, acid hydrolases, Elastase, defensins, neutral serine proteases, bactericidal/permeability-increasing protein, lysozyme, cathepsin G, proteinase 3, and proteoglycans.