JBS Bright Red
Catalogue Number: CO-304-JEN
| Manufacturer: | Jena Bioscience |
| Shelf Life: | 12 months |
| Type: | Biological dyes |
| Shipping Condition: | RT |
| Storage Condition: | RT |
| Unit(s): | 300 ul |
Description
Description: Crystallization screening with high concentrations of precipitant and salt may lead to the formation of salt crystals. It is quite difficult to make a distinction between these false positives and true protein crystals. Staining of crystals with appropriate dyes is a very straightforward method to differentiate between macromolecular crystals and salt crystals [1]. Protein and salt crystals differ substantially in their solvent content. Small crystal dyes, like JBS Bright Red, are able to permeate the solvent channels of a protein, thus coloring the protein red. In contrast, salt crystals are tightly packed and do not possess large solvent channels. They will therefore remain colourless.
Additional Text
Application Notes
JBS Bright Red is a crystal dye used to stain macromolecular crystals, i.e. protein, peptide and nucleic acid crystals in order to differentiate them from small molecules and salt crystals.
Short Description
Eosin Scarlet
Molecular Weight
624.08 g/mol
CAS Number
548-24-3
Molecular Formula
C20H6Br2N2Na2O9
Smile String
c1(c(cc2c(c1Br)Oc1c(C32c2ccccc2C(=O)O3)cc(c(c1Br)[O-])[N+](=O)[O-])[N+](=O)[O-])[O-].[Na].[Na]
CO-304 MSDS
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