Sentences with phrase «atom aromatic ring»
It also is the first 6 - atom aromatic ring (a hexagonal array of carbon atoms bristling with hydrogen atoms) molecule ever detected with a radio telescope.
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Almost 90 percent of known active pharmaceutical ingredients contain one or more «heterocyclic aromatic rings», structures that contain atoms of at least two different elements.
Many also contain «aromatic» rings — hexagons of carbon atoms linked by alternating double and single bonds.
Triarylmethanes are a group of compounds that derive from methane (a molecule consisting of carbon with 4 hydrogen atoms attached to it) and consist of a carbon atom center with 3 aryl (aromatic ring) groups and a hydrogen atom.
«As a result of screening about 200 compounds, we found that (3 - furyl) diphenylmethane (chem7), which is a triarylmethane that contains 2 phenyl groups and a furyl (a 5 - membered aromatic ring containing 4 carbons and an oxygen atom in the ring) group, had strong inhibitory activity on plant cell division,» says Ueda.
It also is the first 13 - atom molecule with a 6 - atom aromatic carbon ring (a hexagonal array of carbon atoms bristling with hydrogen atoms) molecule ever detected with a radio telescope.
This 6 - atom, aromatic, ringed molecule provides a vital clue in identifying the source of a faint infrared glow permeating the Milky Way.
It is different from T3 or Triiodothyronine in terms of the attachment of the atoms to the aromatic rings.
Aromatics: Hydrocarbons characterized by unsaturated ring structures of carbon atoms.