--- product_id: 118094652 title: "Coomassie Brilliant Blue G-250 (CBBG) Analytical Dye from Cepham Life Sciences - 25 g" brand: "cepham life sciences" price: "€ 187.21" currency: EUR in_stock: true category: "Cepham Life Sciences" url: https://www.desertcart.sk/products/118094652-coomassie-brilliant-blue-g-250-cbbg-analytical-dye-from-cepham store_origin: SK region: Slovakia --- # 854 Da molecular weight precision High sensitivity detection ≥0.5 µg/cm² Bright blue protein-dye complex at 595 nm Coomassie Brilliant Blue G-250 (CBBG) Analytical Dye from Cepham Life Sciences - 25 g **Brand:** cepham life sciences **Price:** € 187.21 **Availability:** ✅ In Stock ## Summary > 🔵 Turn your protein assays into a vibrant visual story! ## Quick Answers - **What is this?** Coomassie Brilliant Blue G-250 (CBBG) Analytical Dye from Cepham Life Sciences - 25 g by cepham life sciences - **How much does it cost?** € 187.21 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/118094652-coomassie-brilliant-blue-g-250-cbbg-analytical-dye-from-cepham) ## Best For - cepham life sciences enthusiasts ## Why This Product - Trusted cepham life sciences brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Backed by Confidence:** Money-back guarantee ensures your research never hits a dead end. - • **GMP-Grade Reliability:** Manufactured under strict Good Manufacturing Practices for consistent, lab-grade performance. - • **Reversible Staining Magic:** Easily differentiate and recover proteins with reversible electrostatic binding. - • **Vibrant Colorimetric Shift:** Watch your samples transform from reddish-brown to brilliant blue at 595 nm absorbance. - • **Precision Protein Detection:** Detect proteins down to 0.5 µg/cm² with unmatched clarity. ## Overview Coomassie Brilliant Blue G-250 from Cepham Life Sciences is a GMP-manufactured analytical dye designed for high-sensitivity protein detection in gel electrophoresis and Bradford assays. It binds proteins via basic amino acids, producing a distinct blue color at 595 nm, enabling precise quantitation down to 0.5 µg/cm². This reversible, colloidal dye ensures reliable, reproducible results backed by a money-back guarantee. ## Description Coomassie Brilliant Blue G-250 is one of the most commonly available and utilized form of coomassie dye, which is a key component of various colorimetric protein gel stains. It is a chemical form of a disulfonated triphenylmethane compound that is commonly employed as the basis of stains for protein detection and quantitation in gel electrophoresis and Bradford-type assay reagents. G-250 (green-tinted) form is also referred to as colloidal coomassie dye. Typically, coomassie gel stains and protein assay reagents are formulated as very acidic solutions in 25 to 50% methanol. In acidic conditions, the dye binds to proteins primarily through basic amino acids (primarily arginine, lysine and histidine), and the number of coomassie dye ligands bound to each protein molecule is approximately proportional to the number of positive charges found on the protein. Protein-binding causes the dye to change from reddish-brown to bright blue (absorption maximum equals 595 nm). CAS#: 6104-58-1 Molecular Formula: C47H48N3O7S2Na Molecular Weight: 854 Appearance: Dark blue to Blue-black to Dark brown to Violet-brown powder Solubility: Dark blue solution (1 mg/mL in water) Storage temp.: Store at RT Suitability: Suitable for electrophoresis Applications/ Features: Easy detection; develops intensely colored complexes with proteins High sensitivity; can determine as little as 0.5 µg/cm2 of protein present in a gel matrix Reversible staining; anion of Coomassie Brilliant Blue formed in the acidic staining medium combines with the protonated amino groups of proteins by electrostatic interaction; resulting complex is reversible under the proper conditions Differentiation between bound/unbound dye; when dissolved in 0.01M citrate buffer at pH 3.0, has an absorption maximum at 555nm; protein-dye complex is characterized by a peak slightly broader t ## Features - Each production lot is manufactured following stringent Good Manufacturing Practices and rigorous quality control tests - Product is guaranteed to perform as per its SOP and is backed with a money back guarantee ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07DPTLTW5 | | Brand | Cepham Life Sciences | | Brand Name | Cepham Life Sciences | | Container Type | Jar | | Item Form | Gel | | Manufacturer | Cepham Life Sciences | | Number of Items | 1 | | Package Information | Jar | ## Product Details - **Brand:** Cepham Life Sciences - **Item Form:** Gel - **Manufacturer:** Cepham Life Sciences - **Number of Items:** 1 - **Package Information:** Jar ## Images ![Coomassie Brilliant Blue G-250 (CBBG) Analytical Dye from Cepham Life Sciences - 25 g - Image 1](https://m.media-amazon.com/images/I/31VrQMSWqzL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sk/products/118094652-coomassie-brilliant-blue-g-250-cbbg-analytical-dye-from-cepham](https://www.desertcart.sk/products/118094652-coomassie-brilliant-blue-g-250-cbbg-analytical-dye-from-cepham) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-08-01*