Direct Blue 1  (Synonyms: Chicago Sky Blue 6B)

Direct Blue 1 (Chicago Sky Blue 6B) is a counterstain for background autofluorescence in immunofluorescence histochemistry. Direct Blue 1, structurally related to glutamate, is a potent and competitive VGLUT inhibitor without affecting plasma membrane transporters. Direct Blue 1 is the first small molecule PrP ligand capable of inhibiting Aβ binding^[1].

992.80

Solid

C₃₄H₂₄N₆Na₄O₁₆S₄

2610-05-1

COC1=CC(C2=CC=C(/N=N/C3=C(O)C4=C(N)C(S(=O)(O[Na])=O)=CC(S(=O)(O[Na])=O)=C4C=C3)C(OC)=C2)=CC=C1/N=N/C5=C(O)C6=C(N)C(S(=O)(O[Na])=O)=CC(S(=O)(O[Na])=O)=C6C=C5

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

• [1]. Lodha N, Poojary SA. A Novel Contrast Stain for the Rapid Diagnosis of Pityriasis Versicolor: A Comparison of Chicago Sky Blue 6B Stain, Potassium Hydroxide Mount and Culture. Indian J Dermatol. 2015;60(4):340-344.  [Content Brief]

  [2]. Yu G, et al. The antinociceptive effects of intracerebroventricular administration of Chicago sky blue 6B, a vesicular glutamate transporter inhibitor. Behav Pharmacol. 2013;24(8):653-658.  [Content Brief]

  [3]. Risse E, et al. Identification of a Compound That Disrupts Binding of Amyloid-β to the Prion Protein Using a Novel Fluorescence-based Assay. J Biol Chem. 2015;290(27):17020-17028.  [Content Brief]