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  3. 4,4′-Dianilino-1,1′-binaphthyl-5,5′-disulfonic acid dipotassium salt ≥98%, crystalline solid fluorescent dye
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4,4′-Dianilino-1,1′-binaphthyl-5,5′-disulfonic acid dipotassium salt ≥98%, crystalline solid fluorescent dye

Supplier: CAYMAN CHEMICAL COMPANY, INC.
4,4′-Dianilino-1,1′-binaphthyl-5,5′-disulfonic acid dipotassium salt ≥98%, crystalline solid fluorescent dye
4,4′-Dianilino-1,1′-binaphthyl-5,5′-disulfonic acid dipotassium salt ≥98%, crystalline solid fluorescent dye
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21820-1 21820-5 21820-10
76305-448EA 40.48 USD
76305-448 76305-450 76305-452
4,4′-Dianilino-1,1′-binaphthyl-5,5′-disulfonic acid dipotassium salt ≥98%, crystalline solid fluorescent dye
4,4′-Dianilino-1,1′-binaphthyl-5,5′-disulfonic acid dipotassium salt

bis-ANS is a high-affinity non-covalent extrinsic fluorescent dye used to analyze protein conformation. Its predominant interaction with proteins is through its hydrophobic phenyl and naphthyl rings.


  • Emission 523 (free), 496 (bound) nm
  • Excitation 390 (free), 484 (bou