Polyenes are poly-unsaturated organic compounds that contain one or more sequences of alternating double and single carbon-carbon bonds. These double carbon-carbon bonds interact in a process known as conjugation, which results in an overall lower energy state of the molecule. Many fatty acids are polyenes, and many dyes contain linear polyenes. In chemistry, saturation has three meanings: In physical chemistry, saturation is the point at which a solution of a substance can dissolve no more of that substance. ... An organic compound is any member of a large class of chemical compounds whose molecules contain carbon, with exception of carbides, carbonates and carbon oxides. ... General Name, Symbol, Number carbon, C, 6 Chemical series nonmetals Group, Period, Block 14, 2, p Appearance black (graphite) colorless (diamond) Atomic mass 12. ... A chemically conjugated system, is a system of atoms covalently bonded with alternating single and double bonds (e. ... In chemistry, especially biochemistry, a fatty acid is a carboxylic acid (or organic acid), often with a long aliphatic tail (long chains), either saturated or unsaturated. ... A dye can generally be described as a coloured substance that has an affinity to the substrate to which it is being applied. ...

There is a class of anti-fungal antibiotics which are called polyene antibiotics. Their chemical structures feature a large ring of atoms (essentially a cyclic ester ring) containing multiple conjugated carbon-carbon double bonds on one side of the ring and multiple hydroxyl groups bonded to the other side of the ring. Their structures also often have an amino-glycoside group bonded to the molecule. The series of conjugated double bonds typically absorbs strongly in the ultraviolet-visible region of the electromagnetic spectrum, often resulting in the polyene antibiotics having a yellow color. An antifungal drug is medication used to treat fungal infections such as athletes foot, ringworm and candidiasis (thrush), as well as serious systemic infections like cryptococcal meningitis. ... Chemical structure is the arrangement of atoms within a molecule, usually linked by covalent bonds. ... In organic chemistry and biochemistry esters are substances where an organic group replaces a hydrogen atom (or more than one) in an oxygen acid. ... Hydroxide is a functional group consisting of oxygen and hydrogen: -O−H It has a charge of 1-. The term hydroxyl group is used when the functional group -OH is counted as a substituent of an organic compound. ... Ultraviolet-Visible Spectroscopy or Ultraviolet-Visible Spectrophotometry (UV/ VIS) involves the spectroscopy of photons (spectrophotometry). ... The electromagnetic spectrum is the range of all possible electromagnetic radiation. ...