This group of reagents provides excellent cytoplasmic staining of gynecological and non-gynecological samples. The wide range of formulations available allows the end user to select from various color intensities and hues. Papanicolaou Stains are used in conjunction with Hematoxylin nuclear stains in the diagnosis of malignant cytological disease. EA-36 and EA-50 are used in conjunction with OG-6 for gynecological staining. EA-65 is used with OG-6 for non-gynecological staining.