---
product_id: 125695764
title: "Coomassie Brilliant Blue G-250 (CBBG) Analytical Dye from Cepham Life Sciences - 100 g"
brand: "cepham life sciences"
price: "1919.54 DT"
currency: TND
in_stock: true
category: "Cepham Life Sciences"
url: https://www.desertcart.tn/products/125695764-coomassie-brilliant-blue-g-250-cbbg-analytical-dye-from-cepham
store_origin: TN
region: Tunisia
---

# Absorption max at 595 nm for precise quantitation High sensitivity detection ≥0.5 µg/cm² Reversible protein-dye binding Coomassie Brilliant Blue G-250 (CBBG) Analytical Dye from Cepham Life Sciences - 100 g

**Brand:** cepham life sciences
**Price:** 1919.54 DT
**Availability:** ✅ In Stock

## Summary

> 🔵 Elevate your protein assays with the gold standard in analytical dyes!

## Quick Answers

- **What is this?** Coomassie Brilliant Blue G-250 (CBBG) Analytical Dye from Cepham Life Sciences - 100 g by cepham life sciences
- **How much does it cost?** 1919.54 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/125695764-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 lab stays ahead without compromise.
- • **Reversible Staining Magic:** Easily differentiate and recover proteins with reversible dye binding—flexibility meets accuracy.
- • **GMP-Grade Quality Assurance:** Manufactured under stringent Good Manufacturing Practices with rigorous QC—trust in every batch.
- • **Precision Protein Detection:** Detect proteins with ultra-sensitive clarity down to 0.5 µg/cm²—never miss a detail.
- • **Optimized Colorimetric Performance:** Bright blue complexes at 595 nm absorption for sharp, reliable quantitation every time.

## Overview

Coomassie Brilliant Blue G-250 from Cepham Life Sciences is a GMP-manufactured, high-sensitivity analytical dye designed for precise protein detection and quantitation in gel electrophoresis and Bradford assays. Its reversible binding and distinct absorption peak at 595 nm enable accurate, reliable results, making it a trusted choice for professional labs seeking consistent performance 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 | B07DPTWP7T |
| Best Sellers Rank | #1,759,953 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2,989 in Analytical Reagents |
| Date First Available | June 13, 2018 |
| Manufacturer | Cepham Life Sciences |

## Images

![Coomassie Brilliant Blue G-250 (CBBG) Analytical Dye from Cepham Life Sciences - 100 g - Image 1](https://m.media-amazon.com/images/I/31VrQMSWqzL.jpg)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-06-08*