{"id":2521,"date":"2026-07-11T21:33:52","date_gmt":"2026-07-11T20:33:52","guid":{"rendered":"https:\/\/seamlessbio.de\/?page_id=2521"},"modified":"2026-07-12T00:14:03","modified_gmt":"2026-07-11T23:14:03","slug":"bsa-solution","status":"publish","type":"page","link":"https:\/\/seamlessbio.de\/de\/bsa-solution\/","title":{"rendered":"Bovine Serum Albumin solution"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"2521\" class=\"elementor elementor-2521\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ca4282b e-con e-atomic-element e-flexbox-base e-8c60580 \" data-id=\"ca4282b\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"ca4282b\" data-e-type=\"e-flexbox\" data-id=\"ca4282b\">\n    \t\t<div class=\"elementor-element elementor-element-d7ab389 elementor-widget elementor-widget-html\" data-id=\"d7ab389\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<!-- ============================================================\n  SEAMLESSBIO WORDPRESS \u2014 ELEMENTOR HTML WIDGET\n  Design: sb-pp (Human Serum Single-Use Bags Referenz)\n  PAGE: BSA Solution \u2014 Bovine Serum Albumin (5% to 30%)\n  URL SLUG: \/bsa-solution\/\n\n  YOAST SEO:\n  SEO Title:       BSA Solution | 5\u201330% | Bovine Serum Albumin Fraction V | SeamlessBio\n  Slug:            bsa-solution\n  Focus Keyword:   BSA solution supplier\n  Meta Description: Ready-to-use bovine serum albumin (BSA) solutions from 5% to 30% \u2014 Fraction V, \u226597% purity, sterile filtered. For ELISA blocking, Western blot, lateral flow, IVD manufacturing and cell culture. Custom concentrations on request. No MOQ. 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28px}\n.sb-pp-cta-btns{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}\n.sb-pp-btn-teal{display:inline-block;background:#18b7b2;color:#fff!important;text-decoration:none!important;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:14px 28px;border-radius:50px}\n.sb-pp-btn-teal:hover{background:#139b97}\n.sb-pp-btn-outline-dark{display:inline-block;background:transparent;color:#1a2e35!important;border:2px solid #1a2e35;text-decoration:none!important;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:12px 26px;border-radius:50px}\n@media(max-width:900px){.sb-pp-hero{grid-template-columns:1fr;padding:36px 28px}.sb-pp-hero-img{display:none}.sb-pp-usps{grid-template-columns:1fr 1fr}.sb-pp-qs-grid{grid-template-columns:1fr 1fr}.sb-pp-twocol{grid-template-columns:1fr;gap:32px}}\n@media(max-width:600px){.sb-pp{padding:20px 16px 60px}.sb-pp-hero h1{font-size:28px}.sb-pp-usps{grid-template-columns:1fr}.sb-pp-qs-grid{grid-template-columns:1fr}}\n<\/style>\n\n<div class=\"sb-pp\">\n\n<!-- BREADCRUMB -->\n<nav class=\"sb-pp-bc\">\n  <a href=\"https:\/\/seamlessbio.de\/\">Home<\/a> <span>\/<\/span>\n  <a href=\"https:\/\/seamlessbio.de\/albumin-proteins\/\">Albumin &amp; Proteins<\/a> <span>\/<\/span>\n  BSA Solution\n<\/nav>\n\n<!-- HERO -->\n<div class=\"sb-pp-hero\">\n  <div class=\"sb-pp-hero-left\">\n    <div class=\"sb-pp-hero-eyebrow\">Fraction V \u00b7 \u226597% Purity \u00b7 5% to 30% \u00b7 Sterile Filtered \u00b7 No MOQ<\/div>\n    <h1>BSA Solution<\/h1>\n    <p class=\"sb-pp-hero-desc\">Bovine Serum Albumin Fraction V, \u226597% purity \u2014 ready-to-use solutions in PBS, sterile filtered. 5% to 30% from stock. For ELISA blocking, Western blot, lateral flow assay development, IVD reagent manufacturing and cell culture. Custom concentrations and buffer systems on request. Ships at ambient temperature. No minimum order.<\/p>\n    <div class=\"sb-pp-hero-btns\">\n      <a href=\"mailto:info@seamlessbio.de?subject=BSA%20Solution%20Enquiry\" class=\"sb-pp-btn-dark\">Request Specifications<\/a>\n      <a href=\"https:\/\/shop.seamlessbio.de\/collections\/albumin-bsa\" class=\"sb-pp-btn-outline\" target=\"_blank\">View in Shop<\/a>\n    <\/div>\n  <\/div>\n  <div class=\"sb-pp-hero-img\">\n    <img decoding=\"async\" src=\"https:\/\/seamlessbio.de\/wp-content\/uploads\/2026\/06\/bsa-solution-flasche.png\"\n         alt=\"BSA Solution Bovine Serum Albumin 5% 10% 30% Fraction V \u2014 SeamlessBio Germany\"\n         onerror=\"this.style.display='none'\">\n  <\/div>\n<\/div>\n\n<!-- USP CARDS -->\n<div class=\"sb-pp-usps\">\n  <div class=\"sb-pp-usp\">\n    <div class=\"sb-pp-usp-num\">01<\/div>\n    <h3>5% to 30% from Stock<\/h3>\n    <p>Standard concentrations immediately available. Custom concentrations and buffer systems on request with short lead time.<\/p>\n  <\/div>\n  <div class=\"sb-pp-usp\">\n    <div class=\"sb-pp-usp-num\">02<\/div>\n    <h3>\u226597% Purity \u00b7 Fraction V<\/h3>\n    <p>Electrophoretically pure Fraction V. Sterile filtered 0.2 \u00b5m. Low endotoxin (&lt;1 EU\/mg) on request.<\/p>\n  <\/div>\n  <div class=\"sb-pp-usp\">\n    <div class=\"sb-pp-usp-num\">03<\/div>\n    <h3>Ships at Ambient Temp<\/h3>\n    <p>No cold chain, no dry ice surcharge. Store at +2\u00b0C to +8\u00b0C after receipt. 36-month shelf life.<\/p>\n  <\/div>\n  <div class=\"sb-pp-usp\">\n    <div class=\"sb-pp-usp-num\">04<\/div>\n    <h3>No Minimum Order<\/h3>\n    <p>From 10 mL evaluation to bulk litres. Same quality, same documentation at every scale. CoA included.<\/p>\n  <\/div>\n<\/div>\n\n<!-- CONCENTRATION TABLE -->\n<div class=\"sb-pp-qs\">\n  <h2>Available Concentrations<\/h2>\n  <div class=\"sb-pp-table-wrap\">\n  <table class=\"sb-pp-table\">\n    <thead>\n      <tr><th>Concentration<\/th><th>Best For<\/th><th>Key Properties<\/th><th>Pack Sizes<\/th><\/tr>\n    <\/thead>\n    <tbody>\n      <tr>\n        <td>BSA 5% <span class=\"sb-pp-pill pill-std\">Standard<\/span><\/td>\n        <td>ELISA &amp; Western Blot blocking<\/td>\n        <td>Ready-to-use directly in PBST\/TBST \u2014 preferred for phospho-protein detection<\/td>\n        <td>50 mL \u00b7 100 mL \u00b7 500 mL<\/td>\n      <\/tr>\n      <tr>\n        <td>BSA 10% <span class=\"sb-pp-pill pill-std\">Versatile<\/span><\/td>\n        <td>Immunofluorescence, IVD reagents<\/td>\n        <td>Most flexible stock \u2014 use directly or dilute to any working concentration<\/td>\n        <td>50 mL \u00b7 100 mL \u00b7 500 mL<\/td>\n      <\/tr>\n      <tr>\n        <td>BSA 15%<\/td>\n        <td>Lateral flow, enzyme stabilisation<\/td>\n        <td>Conjugate pad &amp; nitrocellulose blocking. Enzyme and antibody formulation.<\/td>\n        <td>100 mL \u00b7 500 mL \u00b7 on request<\/td>\n      <\/tr>\n      <tr>\n        <td>BSA 20% <span class=\"sb-pp-pill pill-hc\">High Conc.<\/span><\/td>\n        <td>IVD calibrator manufacturing<\/td>\n        <td>High-concentration stock for dilution. IVD calibrator matrix. Cryoprotection buffers.<\/td>\n        <td>100 mL \u00b7 500 mL \u00b7 1000 mL<\/td>\n      <\/tr>\n      <tr>\n        <td>BSA 25%<\/td>\n        <td>Pharmaceutical formulation<\/td>\n        <td>High-protein assay matrix. Specialised diagnostic reagent development.<\/td>\n        <td>On request<\/td>\n      <\/tr>\n      <tr>\n        <td><strong>BSA 30%<\/strong> <span class=\"sb-pp-pill pill-vs\">Max Conc.<\/span><\/td>\n        <td><strong>Conjugation \u00b7 cryoprotection \u00b7 pharma<\/strong><\/td>\n        <td><strong>Biotinylation and antibody conjugation. Equivalent to Biowest A0296.<\/strong><\/td>\n        <td><strong>100 mL \u00b7 500 mL \u00b7 1000 mL<\/strong><\/td>\n      <\/tr>\n    <\/tbody>\n  <\/table>\n  <\/div>\n  <p style=\"font-size:13px;color:#888;margin:14px 0 0\">Custom concentrations and buffer systems (HEPES, Tris-HCl, carbonate, WFI) available on request \u2014 contact <a href=\"mailto:info@seamlessbio.de\" style=\"color:#18b7b2\">info@seamlessbio.de<\/a><\/p>\n<\/div>\n\n<hr class=\"sb-pp-divider\">\n\n<!-- QUICK SELECTION -->\n<div class=\"sb-pp-qs\">\n  <h2>Which BSA format do you need?<\/h2>\n  <div class=\"sb-pp-grid\">\n    <a class=\"sb-pp-card\" href=\"#concentrations\">\n      <div class=\"sb-pp-card-label\">Ready-to-use, sterile filtered, 5\u201330%<\/div>\n      <div class=\"sb-pp-card-link\">BSA Solution \u2192<\/div>\n      <p>Immediately usable \u2014 no dissolution, no pH adjustment, no filtration.<\/p>\n    <\/a>\n    <a class=\"sb-pp-card\" href=\"https:\/\/seamlessbio.de\/bsa-low-endotoxin\/\">\n      <div class=\"sb-pp-card-label\">Powder, &lt;1 EU\/mg, for GMP applications<\/div>\n      <div class=\"sb-pp-card-link\">BSA Powder Low Endotoxin \u2192<\/div>\n      <p>For applications requiring defined endotoxin specification and large volume flexibility.<\/p>\n    <\/a>\n    <a class=\"sb-pp-card\" href=\"https:\/\/seamlessbio.de\/bsa-fatty-acid-free\/\">\n      <div class=\"sb-pp-card-label\">Powder, defatted, for lipid studies<\/div>\n      <div class=\"sb-pp-card-link\">BSA Fatty Acid Free \u2192<\/div>\n      <p>For fatty acid transport protocols and lipid metabolism research.<\/p>\n    <\/a>\n    <a class=\"sb-pp-card\" href=\"https:\/\/seamlessbio.de\/human-serum-albumin-hsa\/\">\n      <div class=\"sb-pp-card-label\">Human serum albumin, US origin, high purity<\/div>\n      <div class=\"sb-pp-card-link\">HSA (Human Serum Albumin) \u2192<\/div>\n      <p>For human-specific IVD development and cell culture media applications.<\/p>\n    <\/a>\n    <a class=\"sb-pp-card\" href=\"https:\/\/seamlessbio.de\/albumin-proteins\/\">\n      <div class=\"sb-pp-card-label\">All BSA and albumin products<\/div>\n      <div class=\"sb-pp-card-link\">Albumin &amp; Proteins Overview \u2192<\/div>\n      <p>BSA, HSA and rHSA \u2014 full portfolio from one supplier.<\/p>\n    <\/a>\n    <a class=\"sb-pp-card\" href=\"mailto:info@seamlessbio.de\">\n      <div class=\"sb-pp-card-label\">Custom concentration or bulk requirement<\/div>\n      <div class=\"sb-pp-card-link\">Custom Request \u2192<\/div>\n      <p>Specify concentration, buffer and volume \u2014 quote within 1\u20132 business days.<\/p>\n    <\/a>\n  <\/div>\n<\/div>\n\n<hr class=\"sb-pp-divider\">\n\n<!-- TWO COL -->\n<div class=\"sb-pp-twocol\">\n  <div>\n    <h2>BSA Solution vs. BSA Powder \u2014 when does it matter?<\/h2>\n    <p>BSA powder is economical per gram and flexible in concentration, but requires precise weighing, complete dissolution without foaming, pH adjustment and sterile filtration before use. In laboratories with regular BSA requirements at defined concentrations, a ready-to-use solution saves time, reduces between-preparation variability and eliminates contamination risk during manual preparation.<\/p>\n    <p>SeamlessBio BSA solutions are prepared under controlled conditions, sterile filtered at 0.2 \u00b5m and batch-tested per lot. pH adjusted to 7.2\u20137.4 in PBS buffer (standard). Alternative buffer systems and low endotoxin specifications available on request.<\/p>\n    <p>For IVD development and diagnostic manufacturing, batch consistency is critical. Our solutions are produced from a defined BSA batch \u2014 with batch reservation available to guarantee supply throughout your production lifecycle without prepayment.<\/p>\n  <\/div>\n  <div>\n    <h3>Typical applications<\/h3>\n    <ul class=\"sb-pp-bullets\">\n      <li>ELISA blocking buffer (1\u20135% BSA in TBST or PBST)<\/li>\n      <li>Western blot \u2014 blocking nitrocellulose and PVDF membranes<\/li>\n      <li>Immunofluorescence \u2014 blocking non-specific binding sites<\/li>\n      <li>Lateral flow assay \u2014 conjugate pad and nitrocellulose blocking<\/li>\n      <li>Point-of-care diagnostics \u2014 sample diluent and assay matrix<\/li>\n      <li>IVD calibrator and control manufacturing<\/li>\n      <li>Antibody dilution buffer and long-term stabilisation<\/li>\n      <li>Cell culture supplement \u2014 FBS complement in defined protocols<\/li>\n      <li>Enzyme assay buffers \u2014 protection of sensitive enzymes<\/li>\n      <li>Cryoprotection formulations for cell preservation (20\u201330%)<\/li>\n    <\/ul>\n  <\/div>\n<\/div>\n\n<hr class=\"sb-pp-divider\">\n\n<!-- SPECS TABLE -->\n<div class=\"sb-pp-qs\">\n  <h2>Technical Specifications<\/h2>\n  <div class=\"sb-pp-table-wrap\">\n  <table class=\"sb-pp-table\">\n    <tbody>\n      <tr><td>Product type<\/td><td>Bovine Serum Albumin (BSA) Fraction V \u2014 ready-to-use solution<\/td><\/tr>\n      <tr><td>Purity<\/td><td>\u226597% (Fraction V, electrophoretically determined)<\/td><\/tr>\n      <tr><td>Molecular weight<\/td><td>~66 kDa<\/td><\/tr>\n      <tr><td>Concentrations<\/td><td>5%, 10%, 15%, 20%, 25%, 30% \u2014 custom on request<\/td><\/tr>\n      <tr><td>Buffer (standard)<\/td><td>PBS pH 7.2\u20137.4 \u00b7 HEPES, Tris-HCl, WFI on request<\/td><\/tr>\n      <tr><td>Sterile filtration<\/td><td>0.2 \u00b5m \u2014 sterile, ready to use<\/td><\/tr>\n      <tr><td>Endotoxin<\/td><td>Standard: not specified \u00b7 &lt;1 EU\/mg (LAL) on request<\/td><\/tr>\n      <tr><td>Shipping<\/td><td>Ambient temperature (RT) \u2014 no cold chain required<\/td><\/tr>\n      <tr><td>Storage after receipt<\/td><td>+2\u00b0C to +8\u00b0C \u00b7 do not freeze<\/td><\/tr>\n      <tr><td>Shelf life<\/td><td>36 months from production date<\/td><\/tr>\n      <tr><td>Pack sizes<\/td><td>10 mL \u00b7 50 mL \u00b7 100 mL \u00b7 500 mL \u00b7 1000 mL \u00b7 bulk on request<\/td><\/tr>\n      <tr><td>Documentation<\/td><td>CoA + MSDS included \u00b7 BSE\/TSE statement \u00b7 ISO 13485 on request<\/td><\/tr>\n      <tr><td>Minimum order<\/td><td>No minimum order quantity<\/td><\/tr>\n    <\/tbody>\n  <\/table>\n  <\/div>\n<\/div>\n\n<hr class=\"sb-pp-divider\">\n\n<!-- FAQ -->\n<div class=\"sb-pp-faq\">\n  <h2>Frequently Asked Questions<\/h2>\n\n  <div class=\"sb-pp-faq-item\">\n    <h3>Which BSA concentration should I use for ELISA blocking?<\/h3>\n    <p>1\u20135% BSA in PBST (PBS + 0.05% Tween-20) or TBST is the standard for ELISA blocking. The 5% solution can be used directly without further dilution. For Western blot, 5% BSA in TBST is preferred over skimmed milk when the antibody targets phosphorylated proteins \u2014 milk caseins are themselves phosphorylated and generate high background with phospho-specific antibodies.<\/p>\n  <\/div>\n  <div class=\"sb-pp-faq-item\">\n    <h3>What is Fraction V BSA?<\/h3>\n    <p>Fraction V is the fifth fraction of the Cohn cold-ethanol fractionation process \u2014 the albumin-richest fraction, achieving \u226597% purity. It is the standard grade for cell culture, immunoassay and diagnostics, distinct from lower-purity technical-grade BSA preparations. All SeamlessBio BSA solutions are prepared exclusively from Fraction V BSA.<\/p>\n  <\/div>\n  <div class=\"sb-pp-faq-item\">\n    <h3>What is the difference between BSA solution and BSA powder?<\/h3>\n    <p>BSA solution is immediately ready to use, sterile filtered and batch-tested. Powder requires dissolution, pH adjustment and sterile filtration before use. BSA solution ships at ambient temperature \u2014 no cold chain required. For defined concentration requirements and regular usage, solution provides better reproducibility per preparation.<\/p>\n  <\/div>\n  <div class=\"sb-pp-faq-item\">\n    <h3>Can I order custom concentrations or buffer systems?<\/h3>\n    <p>Yes. SeamlessBio prepares BSA solutions in custom concentrations and buffer systems (HEPES, Tris-HCl, carbonate-bicarbonate, WFI) on request. Contact info@seamlessbio.de with your specification \u2014 feasibility and lead time confirmed within 1\u20132 business days. Batch reservation for IVD production available at no cost.<\/p>\n  <\/div>\n  <div class=\"sb-pp-faq-item\">\n    <h3>Is BSA solution suitable for GMP or IVD manufacturing?<\/h3>\n    <p>Standard solution suits research and IVD development. For GMP or IVD manufacturing, low endotoxin (&lt;1 EU\/mg, LAL) and GMP documentation including BSE\/TSE statements and ISO 13485 certificates are available on request. Contact info@seamlessbio.de with your documentation requirements.<\/p>\n  <\/div>\n<\/div>\n\n<!-- CTA -->\n<div class=\"sb-pp-cta\">\n  <h2>Need a custom concentration or bulk quote?<\/h2>\n  <p>Tell us your required concentration, buffer system and volume \u2014 we confirm availability and send a quote within 1\u20132 business days. Free evaluation samples on request.<\/p>\n  <a class=\"sb-pp-btn-teal\" href=\"mailto:info@seamlessbio.de?subject=BSA%20Solution%20Enquiry\">Contact Us<\/a>\n<\/div>\n\n<\/div><!-- end sb-pp -->\n\n<!-- PRODUCT SCHEMA -->\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"BSA Solution \u2014 Bovine Serum Albumin 5% to 30%\",\n  \"description\": \"Ready-to-use bovine serum albumin (BSA) Fraction V solutions from 5% to 30% \u2014 sterile filtered, for ELISA blocking, Western blot, lateral flow, IVD manufacturing and cell culture. No minimum order. 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SeamlessBio prepares BSA solutions in custom concentrations and buffer systems on request. Contact info@seamlessbio.de \u2014 quote within 1\u20132 business days.\"}},{\"@type\":\"Question\",\"name\":\"Is BSA solution suitable for GMP or IVD manufacturing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Standard solution suits IVD development. 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