2-[2-[2-Chloro-3-[2-(1,3-dihydro-3,3-dimethyl-1-(4-sulfobutyl)-2H-benz[e]-indol-2-ylidene)-ethylidene]-1-cyclohexen-1-yl]-ethenyl]-3,3-dimethyl-1-(4-sulfobutyl)-1H-benz[e]indolium, inner salt, free acid.

The chemical formula for ADS830WS is C46 H51 N2 O6 S2 Cl.

• Appearance: Dark Green Powder
• Molecular weight: 827.49 g mol-1
• Melting Point: >250oC (Decomp.)
• Absorption maximum: 820-825 nm (in MeOH)
• Absorption coefficient: 2.4 x 105 L mol-1 cm-1
• Recommended Solvents: Water, Methanol