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Features: Thiol-reactive anionic pentamethine cyanine. Water soluble maleimide analogue. Iodoacetyl group reacts toward thiols at pH > 7.5 to give a stable covalent bond. Name: potassium 1-ethyl-2-((1E,3E,5E)-5-(1-(3-(2-iodoacetamido)propyl)-3,3-dimethyl-5-sulfonatoindolin-2-ylidene)penta-1,3-dienyl)-3,3-dimethyl-3H-indolium-5-sulfonate Linear formula: C32H37IKN3O7S2 Molecular weight: 805.78 g/mol Solubility: Water, methanol, DMSO, DMF. Storage: -20 °C, Photosensitive λabs,max: 643 nm (CH3OH) λem,max: 662 nm (CH3OH) ε: 250000 M-1cm-1 (CH3OH) Assay: ≥ 95% Chromis 645A iodoacetamide Structure