Summary Summary. Acute intermittent porphyria (AIP) is one of the liver (hepatic) porphyrias. AIP is caused by low levels of porphobilinogen deaminase (PBGD), an enzyme also often called hydroxymethylbilane synthase.
Pyridine-N-oxide is the heterocyclic compound with the formula C 5 H 5 NO. This colourless, hygroscopic solid is the product of the oxidation of pyridine. It was originally prepared using peracids as the oxidising agent. The molecule is planar.yridine-N-oxide is the heterocyclic compound with the formula C 5 H 5 NO. This colourless, hygroscopic solid is the product of the oxidation of pyridine. It was originally prepared using peracids as the oxidising agent. The molecule is planar.
Rainbow Pyrite Color Rainbow pyrite displays a shimmering rainbow of colors, including shades of gold, green, pink and blue. Pyrite crystals are normally pale-yellow, brass-yellow or gray-yellow in color, and are often tarnished with brown color owing to iron oxide.With rainbow pyrite, quality is not determined just by color, but also by the size and evenness of crystal coverage.ainbow Pyrite Color Rainbow pyrite displays a shimmering rainbow of colors, including shades of gold, green, pink and blue. Pyrite crystals are normally pale-yellow, brass-yellow or gray-yellow in color, and are often tarnished with brown color owing to iron oxide.