{"id":717702,"date":"2026-05-05T03:12:54","date_gmt":"2026-05-05T03:12:54","guid":{"rendered":"https:\/\/immunomart.com\/?post_type=product&p=717702"},"modified":"2026-05-05T03:12:54","modified_gmt":"2026-05-05T03:12:54","slug":"propidium-iodide-2","status":"publish","type":"product","link":"https:\/\/immunomart.com\/product\/propidium-iodide-2\/","title":{"rendered":"Propidium Iodide"},"content":{"rendered":"<p>Propidium iodide (PI) is a cell impermeable nucleic acid intercalating dye. Because PI is excluded from viable cells it can be used in apoptotic studies to distinguish necrotic cells or cells in the late stages of apoptosis from viable cells or cells in early apoptosis where cell membranes are still intact. PI is also utilized as a counterstain in multicolor fluorescent imaging. After entering cells and binding to DNA and RNA, the fluorescence of PI is enhanced 20- to 30-fold. PI can be used in flow cytometry and fluorescence microscopy.\u00a0 <\/p>\n<ul>\u00a0 <\/p>\n<li>&amp;lamba;<sub>Ex<\/sub>\/&amp;lamba;<sub>Em<\/sub> (DNA-bound) = 535\/617 nm<\/li>\n<p>\u00a0 <\/p>\n<li>&amp;lamba;<sub>Ex<\/sub>\/&amp;lamba;<sub>Em<\/sub> (no DNA) = 493\/636 nm<\/li>\n<p>\u00a0 <\/p>\n<li>Orange red solid soluble in H<sub>2<\/sub>O or DMSO<\/li>\n<p>\u00a0 <\/p>\n<li>Store at 4\u00b0C and protect from light, especially in solution<\/li>\n<p>\u00a0 <\/p>\n<li>C<sub>27<\/sub>H<sub>34<\/sub>I<sub>2<\/sub>N<sub>4<\/sub><\/li>\n<p>\u00a0 <\/p>\n<li>MW: 668.4<\/li>\n<p>\u00a0 <\/p>\n<li>[25535-16-4]<\/li>\n<p>\u00a0 <\/ul>\n<h3>Handling<\/h3>\n<p>Protect from light;<\/p>\n<div style=\"margin:18px 0 4px;padding:11px 14px;background:#fdf4f4;border:1px solid #e6bdbd;border-left:3px solid #c41e3a;border-radius:4px;font-size:13px;line-height:1.55;color:#3a3a3a\"><strong style=\"color:#8a1524\">For Research Use Only (RUO).<\/strong> This product is sold strictly for laboratory research use only. <strong>Not for human or veterinary consumption, therapeutic, or diagnostic use.<\/strong> Any pharmacological, therapeutic, cosmetic, or biological effects described above are provided as research context only and do not represent intended or approved uses of this product.<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Propidium iodide (PI) is a cell impermeable nucleic acid intercalating dye. Because PI is excluded from viable cells it can be used in apoptotic studies to distinguish necrotic cells or cells in the late stages of apoptosis from viable cells or cells in early apoptosis where cell membranes are still intact. PI is also utilized [&hellip;]<\/p>\n","protected":false},"featured_media":715085,"template":"","meta":{"_acf_changed":false,"ep_exclude_from_search":false},"product_brand":[1638],"product_cat":[1672,1648,1722,1685,1687,1714,1668,1705],"product_tag":[],"class_list":{"0":"post-717702","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-biotium","7":"product_cat-biotium-cell-cycle-analysis","8":"product_cat-biotium-dead-cell-stains","9":"product_cat-biotium-dna-binding-dyes","10":"product_cat-biotium-flow-cytometry","11":"product_cat-biotium-fluorescence-microscopy","12":"product_cat-biotium-nuclear-counterstains","13":"product_cat-nuclear-stains-dna-rna-dyes","14":"product_cat-biotium-other-bacterial-stains","16":"first","17":"instock","18":"taxable","19":"shipping-taxable","20":"purchasable","21":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/immunomart.com\/wp-json\/wp\/v2\/product\/717702","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/immunomart.com\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/immunomart.com\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/immunomart.com\/wp-json\/wp\/v2\/media\/715085"}],"wp:attachment":[{"href":"https:\/\/immunomart.com\/wp-json\/wp\/v2\/media?parent=717702"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/immunomart.com\/wp-json\/wp\/v2\/product_brand?post=717702"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/immunomart.com\/wp-json\/wp\/v2\/product_cat?post=717702"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/immunomart.com\/wp-json\/wp\/v2\/product_tag?post=717702"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}