ADS680WS is 2-[5-(1,3-Dihydro-3,3-dimethy-1-(4-sulfobutyl)l-2H-benz[e]indol-2-ylidene)-1,3-pentadienyl]-3,3-dimethyl-1-(4-sulfobutyl)-1H-benz[e]indolium innersalt, monosodium.

The chemical formula for ADS680WS is C41 H45 N2 O6 S2 Na.

  • Appearance: Light Blue Powder
  • Molecular weight: 748.94 g mol-1
  • Melting Point: > 250oC (Decomp.)
  • Absorption maximum: 677 – 682 nm (in MeOH)
  • Absorption coefficient: 1.5 x 105 L mol-1 cm-1
  • Recommended Solvents:  Water, Methanol