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JBS Bright Red

CAT: 0013-GTR19152111Size: 300 µLDry Ice: NoHazardous: No
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CAT#:0013-GTR19152111Size:300 µL
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24/48H Stock Items & 2 to 6 Weeks non Stock Items.
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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 straightfor-ward method to differentiate between macromolecular crystals and salt crystals. Protein and salt crystals differ substantially in their solvent content. Small crystal dyes, like Biorbyt 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.
CAS Number
548-24-3
Product Name Alternative
Eosin Scarlet
Concentration
1 mM
Smiles
C1 (c (cc2c (c1Br) Oc1c (C32c2ccccc2C (=O) O3) cc (c (c1Br) [O-]) [N+] (=O) [O-]) [N+] (=O) [O-]) [O-].[Na+].[Na+]
Molecular Formula
C20H6Br2N2Na2O9
Molecular Weight
Theoretical MW: 624.08 g/mol
Storage Conditions
Store at ambient temperature
Notes
For research use only.
Applications Notes
Biorbyt 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.

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