Search results

• Porphyrin
  ...d [[blood cell]]s. Heme is a cofactor of the protein hemoglobin. They are heterocyclic [[macrocycle]]s composed of four modified [[pyrrole]] subunits interconnect
  12 KB (1,605 words) - 20:15, 21 September 2010
• Tetraphenylporphyrin
  ...s [[hydrophobic]], symmetrically substituted, and easily synthesized. The compound is a deep blue solid that dissolves in nonpolar organic solvents such as [[ ...ituted at the oxidatively sensitive "meso" carbon positions, and hence the compound is sometimes called ''meso''-tetraphenylporphyrin. Another synthetic porph
  5 KB (677 words) - 20:15, 21 September 2010
• Hemoglobin
  ...sists of an iron (Fe) ion (charged atom) held in a [[heterocyclic compound|heterocyclic]] ring, known as a [[porphyrin]]. This porphyrin ring consists of four pyrr ...sport oxygen. When hemoglobin combines with CO, it forms a very bright red compound called [[carboxyhemoglobin]], which may cause the skin of CO poisoning vict
  67 KB (9,844 words) - 20:17, 21 September 2010
• Hapticity
  ...</sup>₃)₂(η²-H₂ ) - the first compound to be synthesized with a dihydrogen ligand.<ref name=Kubas1/><ref name=Kuba ...ngs are bonded in an η⁶-coordination), results in another 18VE compound: [Ru(η⁶-C₆Me₆)(η⁴-C<sub>6</su
  11 KB (1,575 words) - 20:18, 21 September 2010
• Quinine total synthesis
  ...allyl [[toluidine]] based on the erroneous idea that 2 equivalents of this compound with [[chemical formula]] C₁₀H₁₃N plus three equivale :Woodward and Doering argue that Rabe in 1918 already proved that this compound will eventually give quinine but do not repeat Rabe's work. In this project
  17 KB (2,355 words) - 22:15, 21 September 2010
• Ketorolac
  ...anti-inflammatory drug]] (NSAID) in the family of [[Heterocyclic compound|heterocyclic]] [[acetic acid]] [[derivative (chemistry)|derivative]], often used as an [
  16 KB (2,012 words) - 22:15, 21 September 2010
• Vegetable fats and oils
  ...rogen]] in the presence of a [[catalyst]], typically a powdered [[nickel]] compound. As each carbon-carbon double-bond is chemically reduced to a single bond, Currently, the largest uses of waste vegetable oil in the U.S. are for [[compound feed|animal feed]], [[pet food]], and [[cosmetics]]. Since 2002, an increa
  32 KB (4,810 words) - 19:39, 13 October 2010

View (previous 20 | next 20) (20 | 50 | 100 | 250 | 500)