{"id":716243,"date":"2026-05-05T02:45:58","date_gmt":"2026-05-05T02:45:58","guid":{"rendered":"https:\/\/immunomart.com\/?post_type=product&p=716243"},"modified":"2026-05-05T02:45:58","modified_gmt":"2026-05-05T02:45:58","slug":"5-and-6-carboxyfluorescein","status":"publish","type":"product","link":"https:\/\/immunomart.com\/product\/5-and-6-carboxyfluorescein\/","title":{"rendered":"5-(And-6)-Carboxyfluorescein"},"content":{"rendered":"<p>5-(and-6)-FAM (full name: 5-(and-6)-Carboxyfluorescein mixed isomer) has a pKa of 6.5 and can be used as a pH indicator. Its excitation spectrum and fluorescence response to pH are similar to those of BCECF. Carboxyfluorescein can also be used as a tracer dye. The dye is membrane-impermeant and can be loaded into cells by microinjection or scrape loading.\u00a0 <\/p>\n<ul>\u00a0 <\/p>\n<li>&amp;lamba;<sub>Ex<\/sub>\/&amp;lamba;<sub>Em<\/sub> (pH 9) = 492\/514 nm<\/li>\n<p>\u00a0 <\/p>\n<li>\u03b5 (pH 9) = 82,000<\/li>\n<p>\u00a0 <\/p>\n<li>Yellow orange solid soluble in pH&gt;6 water<\/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>21<\/sub>H<sub>12<\/sub>O<sub>7<\/sub><\/li>\n<p>\u00a0 <\/p>\n<li>MW: 376<\/li>\n<p>\u00a0 <\/p>\n<li>[72088-94-9]<\/li>\n<p>\u00a0 <\/ul>\n<h3>Handling<\/h3>\n<p>Store with desiccant; 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>5-(and-6)-FAM (full name: 5-(and-6)-Carboxyfluorescein mixed isomer) has a pKa of 6.5 and can be used as a pH indicator. Its excitation spectrum and fluorescence response to pH are similar to those of BCECF. Carboxyfluorescein can also be used as a tracer dye. The dye is membrane-impermeant and can be loaded into cells by microinjection or [&hellip;]<\/p>\n","protected":false},"featured_media":715256,"template":"","meta":{"_acf_changed":false,"ep_exclude_from_search":false},"product_brand":[1638],"product_cat":[1664,1693,1701],"product_tag":[],"class_list":{"0":"post-716243","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-biotium","7":"product_cat-biotium-cytosolic-tracers","8":"product_cat-dextrans-other-fluid-phase-tracers","9":"product_cat-magnesium-chloride-ph-zinc-other-indicators","11":"first","12":"instock","13":"taxable","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/immunomart.com\/wp-json\/wp\/v2\/product\/716243","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\/715256"}],"wp:attachment":[{"href":"https:\/\/immunomart.com\/wp-json\/wp\/v2\/media?parent=716243"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/immunomart.com\/wp-json\/wp\/v2\/product_brand?post=716243"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/immunomart.com\/wp-json\/wp\/v2\/product_cat?post=716243"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/immunomart.com\/wp-json\/wp\/v2\/product_tag?post=716243"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}