paraquat, methyl viologen molecule. it is herbicide, pesticide. structural chemical, dark blue background

paraquat methyl viologen herbicide pesticide weed killer agriculture nonselective desiccant defoliant poisonous restricted hazardous chlorine drawing flat icon hydrogen carbon oxygen organic chemistry structural formula chemical atomic molecule molecular structure atom compound design white dark blue vector background font text brand screenshot presentation diagram line circle logo multimedia number advertising document poster cartoon signage organ