Evans Blue tetrasodium salt

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Cat.No. 0845 - Evans Blue tetrasodium salt | C34H24N6Na4O14S4 | CAS No. 314-13-6
Description: Potent inhibitor of L-glutamate uptake into synaptic vesicles
Chemical Name: 6,6-[(3,3'-Dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)bis[4-amino- 5-hydroxy-1,3-naphthalenedisulphonic acid] tetrasodium salt
Purity: ≥95% (HPLC)

Biological Activity

Potent inhibitor of L-glutamate uptake into synaptic vesicles. Also inhibits AMPA and kainate receptor-mediated currents (IC50 values are 220 and 150 nM respectively). P2X-selective purinoceptor antagonist.

Technical Data

M. Wt 960.82
Formula C34H24N6Na4O14S4
Storage Store at RT
Purity ≥95% (HPLC)
CAS Number 314-13-6
PubChem ID 101102794
Smiles [Na+].[Na+].[Na+].[Na+].CC1=CC(=CC=C1\N=N\C1=C(O)C2=C(C=C1)C(=CC(=C2N)S([O-])(=O)=O)S([O-])(=O)=O)C1=CC(C)=C(C=C1)\N=N\C1=C(O)C2=C(N)C(=CC(=C2C=C1)S([O-])(=O)=O)S([O-])(=O)=O

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

All Tocris products are intended for laboratory research use only.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
water 9.61 10

Preparing Stock Solutions

The following data is based on the product molecular weight 960.82. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.04 mL 5.2 mL 10.41 mL
5 mM 0.21 mL 1.04 mL 2.08 mL
10 mM 0.1 mL 0.52 mL 1.04 mL
50 mM 0.02 mL 0.1 mL 0.21 mL

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References are publications that support the products' biological activity.

Price and Raymond (1996) Evans blue antagonizes both α-amino-3-hydroxy-5-methyl-4-isoxazolepropionate and kainate receptors and modulates desensitization. Mol. Pharmacol. 50 1665 PMID: 8967991

Roseth et al (1995) Uptake of L-glutamate into rat brain synaptic vesicles: effect of inhibitors that bind specifically to the glutamate transporter. J.Neurochem. 65 96 PMID: 7790899

Wittenburg et al (1996) P2-purinoceptor antagonists:II blockade of P2-purinoceptor subtypes and ecto-nucleotidase by compounds related to Evans blue and trypan blue. Naunyn Schmiedebergs Arch.Pharmacol. 354 491 PMID: 8897453

Schurmann et al (1997) Differential modulation of AMPA receptor mediated currents by Evans Blue in postnatal rat hippocampal neurones. Br.J.Pharmacol. 121 237 PMID: 9154333

Merck Index 12 3952 PMID:

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