3 Hidden Pitfalls in DMPK Transporter Assays | SeamlessBio<\/title>\n<style>\n\/* \u2500\u2500 Reset \u2500\u2500 *\/\n*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}\n\n\/* \u2500\u2500 Tokens \u2500\u2500 *\/\n:root{\n --teal:#18b7b2;\n --teal-dark:#139b97;\n --teal-pale:#e9fbfa;\n --dark:#1a2e35;\n --mid:#2e4a54;\n --grey:#f4f6f7;\n --border:#d8e8e7;\n --text:#2c3e3f;\n --muted:#6b7f82;\n --orange:#e07b00;\n --orange-dark:#c46d00;\n --white:#ffffff;\n}\n\nbody{\n font-family:'Helvetica Neue',Arial,sans-serif;\n font-size:16px;\n line-height:1.7;\n color:var(--text);\n background:var(--white);\n}\n\n\/* \u2500\u2500 HERO \u2500\u2500 *\/\n.hero{\n background:linear-gradient(135deg,#18b7b2 0%,#62d0cc 60%,#a8e6e4 100%);\n padding:72px 24px 64px;\n text-align:center;\n}\n.hero-inner{max-width:720px;margin:0 auto}\n.hero .eyebrow{\n display:inline-block;\n font-size:11px;font-weight:700;letter-spacing:2px;text-transform:uppercase;\n 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a{color:var(--teal);text-decoration:none}\n\n\/* \u2500\u2500 SUCCESS STATE \u2500\u2500 *\/\n.success-msg{\n display:none;text-align:center;padding:40px;\n}\n.success-msg .check{font-size:56px;margin-bottom:16px}\n.success-msg h3{font-size:22px;font-weight:700;color:var(--dark);margin-bottom:8px}\n.success-msg p{color:var(--muted)}\n\n\/* \u2500\u2500 Responsive \u2500\u2500 *\/\n@media(max-width:640px){\n .hero h1{font-size:28px}\n .hero{padding:52px 20px 48px}\n .pitfall{grid-template-columns:1fr;gap:12px}\n .form-row{grid-template-columns:1fr}\n .checkbox-grid{grid-template-columns:repeat(2,1fr)}\n .form-card{padding:32px 24px}\n .download-card{padding:40px 28px}\n .download-card h2{font-size:24px}\n .section h2{font-size:24px}\n}\n<\/style>\n<\/head>\n<body>\n\n\n<div class=\"hero\">\n <div class=\"hero-inner\">\n <div class=\"eyebrow\">SeamlessBio \u00d7 Cell4Pharma \u00b7 DMPK Science<\/div>\n <h1>3 Hidden Pitfalls<br><span>in ABC Transporter<\/span><br>Vesicle Assays<\/h1>\n <p class=\"lead\">What most DMPK labs don't know is costing them reproducibility, time, and regulatory confidence. Download the free guide.<\/p>\n <div class=\"hero-badges\">\n <span class=\"badge\">BSEP \u00b7 MRP \u00b7 Pgp \u00b7 BCRP<\/span>\n <span class=\"badge\">FDA\/EMA DDI compliant<\/span>\n <span class=\"badge\">EU stock \u2014 2\u20134 days DACH<\/span>\n <span class=\"badge\">Free evaluation sample<\/span>\n <\/div>\n <\/div>\n<\/div>\n\n\n<div class=\"video-section\">\n <div class=\"video-inner\">\n <div class=\"section-label\">From Pascal Zimmermann \u00b7 SeamlessBio<\/div>\n <h2>Why we built this guide<\/h2>\n <p>A 90-second overview of the three pitfalls we see most often \u2014 and how HEK293-derived vesicles solve them.<\/p>\n\n \n <div style=\"display:flex;justify-content:center;margin:8px 0 0;\">\n <div style=\"width:260px;position:relative;padding-bottom:462px;\">\n <iframe\n src=\"https:\/\/www.youtube.com\/embed\/OAZ9M5QQ1ow?rel=0&modestbranding=1\"\n style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:2px solid #18b7b2;border-radius:12px;\"\n allowfullscreen\n allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\">\n <\/iframe>\n <\/div>\n <\/div>\n<\/div>\n\n\n<div class=\"pitfalls-section\">\n <div class=\"pitfalls-inner\">\n <div class=\"section-label\">What's inside the guide<\/div>\n <h2 style=\"font-size:26px;font-weight:800;color:var(--dark);letter-spacing:-0.5px;margin-bottom:28px\">The 3 pitfalls \u2014 at a glance<\/h2>\n\n <div class=\"pitfall\">\n <div class=\"pitfall-num\">1<\/div>\n <div>\n <h3>Sf9 Lot Variability \u2014 The Baculovirus Timing Problem<\/h3>\n <p>Sf9 insect cells produce ABC transporter vesicles via baculovirus infection. The problem: vesicle activity depends critically on harvest timing post-infection. A 12-hour difference can shift BSEP activity by 3\u20135x between lots. Your IC50 database is only as reproducible as your most variable lot.<\/p>\n <span class=\"stat\">HEK293 fix: defined ATP\/AMP ratio \u226510 (BSEP) on every CoA<\/span>\n <\/div>\n <\/div>\n\n <div class=\"pitfall\">\n <div class=\"pitfall-num\">2<\/div>\n <div>\n <h3>No EU Supplier \u2014 Fixed Wednesday Shipping<\/h3>\n <p>The dominant US-based supplier ships TranSelect products exclusively on Wednesdays. Orders must arrive by the previous Thursday. For DMPK labs with IND timeline pressure or short-notice project starts, a 7\u201314 day lead time on every reorder is a real operational risk.<\/p>\n <span class=\"stat\">EU fix: Cell4Pharma ships from Passau \u2014 2\u20134 business days, no fixed days<\/span>\n <\/div>\n <\/div>\n\n <div class=\"pitfall\">\n <div class=\"pitfall-num\">3<\/div>\n <div>\n <h3>HK-2 Lacks OAT1\/OAT3 \u2014 The Renal Screening Gap<\/h3>\n <p>HK-2 is the standard renal cell model in most preclinical labs \u2014 but it does not stably express OAT1 or OAT3, the two proximal tubule transporters responsible for uptake of most renally-cleared drugs. Result: 19% of Phase III failures are nephrotoxicity-related, but only 2% are caught preclinically.<\/p>\n <span class=\"stat\">ciPTEC fix: OAT1 + OAT3 stably expressed \u2014 AZ-validated, 90+ publications<\/span>\n <\/div>\n <\/div>\n <\/div>\n<\/div>\n\n\n<div class=\"download-section\">\n <div class=\"download-inner\">\n <div class=\"download-card\">\n <h2>Download the Free Guide<\/h2>\n <p>2 pages. No fluff. The pitfall overview + Cell4Pharma solution page \u2014 ready for your next lab team meeting.<\/p>\n <div class=\"download-features\">\n <span class=\"dl-feat\">\ud83d\udcc4 2 pages<\/span>\n <span class=\"dl-feat\">\u2713 Free \u2014 no signup<\/span>\n <span class=\"dl-feat\">\u2713 Print-ready PDF<\/span>\n <span class=\"dl-feat\">\u2713 Real testimonials<\/span>\n <\/div>\n <a href=\"https:\/\/seamlessbio.de\/wp-content\/uploads\/2026\/07\/DMPK-Pitfalls-and-Solution-2026.pdf\" class=\"btn-download\" download>\n <svg viewBox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M12 16l-6-6h4V4h4v6h4l-6 6zm-7 2h14v2H5v-2z\"\/><\/svg>\n Download PDF \u2014 Free\n <\/a>\n <p class=\"download-note\">No email required. Direct download.<\/p>\n <\/div>\n <\/div>\n<\/div>\n\n\n<div class=\"form-section\">\n <div class=\"form-inner\">\n <div class=\"form-header\">\n <div class=\"section-label\">Request a Quote or Free Sample<\/div>\n <h2>Ready to evaluate Cell4Pharma kits?<\/h2>\n <p>Tell us which transporters you need \u2014 we'll send a quote and arrange a free evaluation lot within 24 hours.<\/p>\n <\/div>\n\n <div class=\"form-card\">\n <div id=\"form-content\">\n <form id=\"quote-form\" onsubmit=\"handleSubmit(event)\">\n\n <div class=\"form-row\">\n <div class=\"form-group\">\n <label for=\"first-name\">First name *<\/label>\n <input type=\"text\" id=\"first-name\" name=\"first_name\" placeholder=\"Anna\" required>\n <\/div>\n <div class=\"form-group\">\n <label for=\"last-name\">Last name *<\/label>\n <input type=\"text\" id=\"last-name\" name=\"last_name\" placeholder=\"Schmidt\" required>\n <\/div>\n <\/div>\n\n <div class=\"form-group\">\n <label for=\"email\">Work email *<\/label>\n <input type=\"email\" id=\"email\" name=\"email\" placeholder=\"a.schmidt@company.com\" required>\n <\/div>\n\n <div class=\"form-row\">\n <div class=\"form-group\">\n <label for=\"company\">Company \/ Institution *<\/label>\n <input type=\"text\" id=\"company\" name=\"company\" placeholder=\"Bayer AG\" required>\n <\/div>\n <div class=\"form-group\">\n <label for=\"country\">Country<\/label>\n <select id=\"country\" name=\"country\">\n <option value=\"\">Select country<\/option>\n <option value=\"DE\">Germany<\/option>\n <option value=\"CH\">Switzerland<\/option>\n <option value=\"AT\">Austria<\/option>\n <option value=\"NL\">Netherlands<\/option>\n <option value=\"BE\">Belgium<\/option>\n <option value=\"FR\">France<\/option>\n <option value=\"UK\">United Kingdom<\/option>\n <option value=\"other\">Other EU<\/option>\n <\/select>\n <\/div>\n <\/div>\n\n <div class=\"form-group\">\n <label for=\"request-type\">What are you looking for? *<\/label>\n <select id=\"request-type\" name=\"request_type\" required>\n <option value=\"\">Select one<\/option>\n <option value=\"free-sample\">Free evaluation sample (no commitment)<\/option>\n <option value=\"quote\">Quote for specific kit(s)<\/option>\n <option value=\"both\">Both \u2014 sample + quote<\/option>\n <option value=\"info\">Technical information \/ datasheet<\/option>\n <\/select>\n <\/div>\n\n <div class=\"form-transporter\">\n <label>Which transporter(s) are you interested in?<\/label>\n <div class=\"checkbox-grid\">\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"BSEP\"> BSEP<\/label>\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"MRP2\"> MRP2<\/label>\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"MRP4\"> MRP4<\/label>\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"Pgp\"> Pgp<\/label>\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"BCRP\"> BCRP<\/label>\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"ciPTEC\"> ciPTEC<\/label>\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"MRP1\"> MRP1<\/label>\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"MRP3\"> MRP3<\/label>\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"MRP8\"> MRP8<\/label>\n <\/div>\n <\/div>\n\n <div class=\"form-group\">\n <label for=\"message\">Additional information or questions<\/label>\n <textarea id=\"message\" name=\"message\" placeholder=\"e.g. current supplier, lot size needed, timeline...\"><\/textarea>\n <\/div>\n\n <button type=\"submit\" class=\"btn-submit\">Request Quote \/ Free Sample \u2192<\/button>\n <p class=\"form-disclaimer\">We respond within 24 business hours. Your data is used only to process your request and is not shared with third parties.<br>\n Questions? <a href=\"mailto:info@seamlessbio.de\" style=\"color:var(--teal-dark)\">info@seamlessbio.de<\/a> \u00b7 +49 851 37932226<\/p>\n\n <\/form>\n\n <div class=\"success-msg\" id=\"success-msg\">\n <div class=\"check\">\u2705<\/div>\n <h3>Request received \u2014 thank you!<\/h3>\n <p>We'll get back to you within 24 business hours with your quote or evaluation sample arrangement.<br><br>\n Questions in the meantime: <a href=\"mailto:info@seamlessbio.de\" style=\"color:var(--teal-dark)\">info@seamlessbio.de<\/a><\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n<\/div>\n\n\n<div class=\"footer-strip\">\n <p>\u00a9 2025 SeamlessBio \u00b7 Passau, Germany \u00b7 <a href=\"https:\/\/seamlessbio.de\">seamlessbio.de<\/a> \u00b7 Exclusive EU distributor for Cell4Pharma B.V. (Netherlands)<\/p>\n<\/div>\n\n<script>\nfunction handleSubmit(e) {\n e.preventDefault();\n const form = document.getElementById('quote-form');\n const success = document.getElementById('success-msg');\n\n \/\/ Collect form data\n const data = new FormData(form);\n const transporters = [...document.querySelectorAll('input[name=\"transporters\"]:checked')].map(el => el.value).join(', ');\n\n \/\/ Build mailto as fallback (replace with your actual form endpoint)\n const subject = encodeURIComponent('Cell4Pharma Quote Request \u2014 ' + (data.get('request_type') || 'Inquiry'));\n const body = encodeURIComponent(\n 'Name: ' + data.get('first_name') + ' ' + data.get('last_name') + '\\n' +\n 'Email: ' + data.get('email') + '\\n' +\n 'Company: ' + data.get('company') + '\\n' +\n 'Country: ' + data.get('country') + '\\n' +\n 'Request: ' + data.get('request_type') + '\\n' +\n 'Transporters: ' + (transporters || 'Not specified') + '\\n' +\n 'Message: ' + (data.get('message') || 'None')\n );\n\n \/\/ Show success\n form.style.display = 'none';\n success.style.display = 'block';\n\n \/\/ Open mailto as fallback\n window.location.href = 'mailto:info@seamlessbio.de?subject=' + subject + '&body=' + body;\n}\n<\/script>\n\n<\/body>\n<\/html>\t\t\t\t<\/div>\n\t\t\n<\/div>\n\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>3 Hidden Pitfalls in DMPK Transporter Assays | SeamlessBio SeamlessBio \u00d7 Cell4Pharma \u00b7 DMPK Science 3 Hidden Pitfallsin ABC TransporterVesicle Assays What most DMPK labs don’t know is costing them […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_canvas","meta":{"_eb_attr":"","footnotes":""},"class_list":["post-2745","page","type-page","status-publish","hentry"],"yoast_head":"\n<title>3 Hidden Pitfalls in DMPK Transporter Assay - SeamlessBio<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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a{color:var(--teal);text-decoration:none}\n\n\/* \u2500\u2500 SUCCESS STATE \u2500\u2500 *\/\n.success-msg{\n display:none;text-align:center;padding:40px;\n}\n.success-msg .check{font-size:56px;margin-bottom:16px}\n.success-msg h3{font-size:22px;font-weight:700;color:var(--dark);margin-bottom:8px}\n.success-msg p{color:var(--muted)}\n\n\/* \u2500\u2500 Responsive \u2500\u2500 *\/\n@media(max-width:640px){\n .hero h1{font-size:28px}\n .hero{padding:52px 20px 48px}\n .pitfall{grid-template-columns:1fr;gap:12px}\n .form-row{grid-template-columns:1fr}\n .checkbox-grid{grid-template-columns:repeat(2,1fr)}\n .form-card{padding:32px 24px}\n .download-card{padding:40px 28px}\n .download-card h2{font-size:24px}\n .section h2{font-size:24px}\n}\n<\/style>\n<\/head>\n<body>\n\n\n<div class=\"hero\">\n <div class=\"hero-inner\">\n <div class=\"eyebrow\">SeamlessBio \u00d7 Cell4Pharma \u00b7 DMPK Science<\/div>\n <h1>3 Hidden Pitfalls<br><span>in ABC Transporter<\/span><br>Vesicle Assays<\/h1>\n <p class=\"lead\">What most DMPK labs don't know is costing them reproducibility, time, and regulatory confidence. Download the free guide.<\/p>\n <div class=\"hero-badges\">\n <span class=\"badge\">BSEP \u00b7 MRP \u00b7 Pgp \u00b7 BCRP<\/span>\n <span class=\"badge\">FDA\/EMA DDI compliant<\/span>\n <span class=\"badge\">EU stock \u2014 2\u20134 days DACH<\/span>\n <span class=\"badge\">Free evaluation sample<\/span>\n <\/div>\n <\/div>\n<\/div>\n\n\n<div class=\"video-section\">\n <div class=\"video-inner\">\n <div class=\"section-label\">From Pascal Zimmermann \u00b7 SeamlessBio<\/div>\n <h2>Why we built this guide<\/h2>\n <p>A 90-second overview of the three pitfalls we see most often \u2014 and how HEK293-derived vesicles solve them.<\/p>\n\n \n <div style=\"display:flex;justify-content:center;margin:8px 0 0;\">\n <div style=\"width:260px;position:relative;padding-bottom:462px;\">\n <iframe\n src=\"https:\/\/www.youtube.com\/embed\/OAZ9M5QQ1ow?rel=0&modestbranding=1\"\n style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:2px solid #18b7b2;border-radius:12px;\"\n allowfullscreen\n allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\">\n <\/iframe>\n <\/div>\n <\/div>\n<\/div>\n\n\n<div class=\"pitfalls-section\">\n <div class=\"pitfalls-inner\">\n <div class=\"section-label\">What's inside the guide<\/div>\n <h2 style=\"font-size:26px;font-weight:800;color:var(--dark);letter-spacing:-0.5px;margin-bottom:28px\">The 3 pitfalls \u2014 at a glance<\/h2>\n\n <div class=\"pitfall\">\n <div class=\"pitfall-num\">1<\/div>\n <div>\n <h3>Sf9 Lot Variability \u2014 The Baculovirus Timing Problem<\/h3>\n <p>Sf9 insect cells produce ABC transporter vesicles via baculovirus infection. The problem: vesicle activity depends critically on harvest timing post-infection. A 12-hour difference can shift BSEP activity by 3\u20135x between lots. Your IC50 database is only as reproducible as your most variable lot.<\/p>\n <span class=\"stat\">HEK293 fix: defined ATP\/AMP ratio \u226510 (BSEP) on every CoA<\/span>\n <\/div>\n <\/div>\n\n <div class=\"pitfall\">\n <div class=\"pitfall-num\">2<\/div>\n <div>\n <h3>No EU Supplier \u2014 Fixed Wednesday Shipping<\/h3>\n <p>The dominant US-based supplier ships TranSelect products exclusively on Wednesdays. Orders must arrive by the previous Thursday. For DMPK labs with IND timeline pressure or short-notice project starts, a 7\u201314 day lead time on every reorder is a real operational risk.<\/p>\n <span class=\"stat\">EU fix: Cell4Pharma ships from Passau \u2014 2\u20134 business days, no fixed days<\/span>\n <\/div>\n <\/div>\n\n <div class=\"pitfall\">\n <div class=\"pitfall-num\">3<\/div>\n <div>\n <h3>HK-2 Lacks OAT1\/OAT3 \u2014 The Renal Screening Gap<\/h3>\n <p>HK-2 is the standard renal cell model in most preclinical labs \u2014 but it does not stably express OAT1 or OAT3, the two proximal tubule transporters responsible for uptake of most renally-cleared drugs. Result: 19% of Phase III failures are nephrotoxicity-related, but only 2% are caught preclinically.<\/p>\n <span class=\"stat\">ciPTEC fix: OAT1 + OAT3 stably expressed \u2014 AZ-validated, 90+ publications<\/span>\n <\/div>\n <\/div>\n <\/div>\n<\/div>\n\n\n<div class=\"download-section\">\n <div class=\"download-inner\">\n <div class=\"download-card\">\n <h2>Download the Free Guide<\/h2>\n <p>2 pages. No fluff. The pitfall overview + Cell4Pharma solution page \u2014 ready for your next lab team meeting.<\/p>\n <div class=\"download-features\">\n <span class=\"dl-feat\">\ud83d\udcc4 2 pages<\/span>\n <span class=\"dl-feat\">\u2713 Free \u2014 no signup<\/span>\n <span class=\"dl-feat\">\u2713 Print-ready PDF<\/span>\n <span class=\"dl-feat\">\u2713 Real testimonials<\/span>\n <\/div>\n <a href=\"https:\/\/seamlessbio.de\/wp-content\/uploads\/2026\/07\/DMPK-Pitfalls-and-Solution-2026.pdf\" class=\"btn-download\" download>\n <svg viewBox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M12 16l-6-6h4V4h4v6h4l-6 6zm-7 2h14v2H5v-2z\"\/><\/svg>\n Download PDF \u2014 Free\n <\/a>\n <p class=\"download-note\">No email required. Direct download.<\/p>\n <\/div>\n <\/div>\n<\/div>\n\n\n<div class=\"form-section\">\n <div class=\"form-inner\">\n <div class=\"form-header\">\n <div class=\"section-label\">Request a Quote or Free Sample<\/div>\n <h2>Ready to evaluate Cell4Pharma kits?<\/h2>\n <p>Tell us which transporters you need \u2014 we'll send a quote and arrange a free evaluation lot within 24 hours.<\/p>\n <\/div>\n\n <div class=\"form-card\">\n <div id=\"form-content\">\n <form id=\"quote-form\" onsubmit=\"handleSubmit(event)\">\n\n <div class=\"form-row\">\n <div class=\"form-group\">\n <label for=\"first-name\">First name *<\/label>\n <input type=\"text\" id=\"first-name\" name=\"first_name\" placeholder=\"Anna\" required>\n <\/div>\n <div class=\"form-group\">\n <label for=\"last-name\">Last name *<\/label>\n <input type=\"text\" id=\"last-name\" name=\"last_name\" placeholder=\"Schmidt\" required>\n <\/div>\n <\/div>\n\n <div class=\"form-group\">\n <label for=\"email\">Work email *<\/label>\n <input type=\"email\" id=\"email\" name=\"email\" placeholder=\"a.schmidt@company.com\" required>\n <\/div>\n\n <div class=\"form-row\">\n <div class=\"form-group\">\n <label for=\"company\">Company \/ Institution *<\/label>\n <input type=\"text\" id=\"company\" name=\"company\" placeholder=\"Bayer AG\" required>\n <\/div>\n <div class=\"form-group\">\n <label for=\"country\">Country<\/label>\n <select id=\"country\" name=\"country\">\n <option value=\"\">Select country<\/option>\n <option value=\"DE\">Germany<\/option>\n <option value=\"CH\">Switzerland<\/option>\n <option value=\"AT\">Austria<\/option>\n <option value=\"NL\">Netherlands<\/option>\n <option value=\"BE\">Belgium<\/option>\n <option value=\"FR\">France<\/option>\n <option value=\"UK\">United Kingdom<\/option>\n <option value=\"other\">Other EU<\/option>\n <\/select>\n <\/div>\n <\/div>\n\n <div class=\"form-group\">\n <label for=\"request-type\">What are you looking for? *<\/label>\n <select id=\"request-type\" name=\"request_type\" required>\n <option value=\"\">Select one<\/option>\n <option value=\"free-sample\">Free evaluation sample (no commitment)<\/option>\n <option value=\"quote\">Quote for specific kit(s)<\/option>\n <option value=\"both\">Both \u2014 sample + quote<\/option>\n <option value=\"info\">Technical information \/ datasheet<\/option>\n <\/select>\n <\/div>\n\n <div class=\"form-transporter\">\n <label>Which transporter(s) are you interested in?<\/label>\n <div class=\"checkbox-grid\">\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"BSEP\"> BSEP<\/label>\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"MRP2\"> MRP2<\/label>\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"MRP4\"> MRP4<\/label>\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"Pgp\"> Pgp<\/label>\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"BCRP\"> BCRP<\/label>\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"ciPTEC\"> ciPTEC<\/label>\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"MRP1\"> MRP1<\/label>\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"MRP3\"> MRP3<\/label>\n <label class=\"checkbox-item\"><input type=\"checkbox\" name=\"transporters\" value=\"MRP8\"> MRP8<\/label>\n <\/div>\n <\/div>\n\n <div class=\"form-group\">\n <label for=\"message\">Additional information or questions<\/label>\n <textarea id=\"message\" name=\"message\" placeholder=\"e.g. current supplier, lot size needed, timeline...\"><\/textarea>\n <\/div>\n\n <button type=\"submit\" class=\"btn-submit\">Request Quote \/ Free Sample \u2192<\/button>\n <p class=\"form-disclaimer\">We respond within 24 business hours. Your data is used only to process your request and is not shared with third parties.<br>\n Questions? <a href=\"mailto:info@seamlessbio.de\" style=\"color:var(--teal-dark)\">info@seamlessbio.de<\/a> \u00b7 +49 851 37932226<\/p>\n\n <\/form>\n\n <div class=\"success-msg\" id=\"success-msg\">\n <div class=\"check\">\u2705<\/div>\n <h3>Request received \u2014 thank you!<\/h3>\n <p>We'll get back to you within 24 business hours with your quote or evaluation sample arrangement.<br><br>\n Questions in the meantime: <a href=\"mailto:info@seamlessbio.de\" style=\"color:var(--teal-dark)\">info@seamlessbio.de<\/a><\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n<\/div>\n\n\n<div class=\"footer-strip\">\n <p>\u00a9 2025 SeamlessBio \u00b7 Passau, Germany \u00b7 <a href=\"https:\/\/seamlessbio.de\">seamlessbio.de<\/a> \u00b7 Exclusive EU distributor for Cell4Pharma B.V. 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