Formic anhydride can be isolated by low-temperature, low-pressure distillation, but decomposes on heating above room temperature. It decomposes into formic acid and carbon monoxide. The decomposition of formic anhydride may be catalyzed by formic acid. Formic anhydride can be detected in the gas-phase reaction of ozone with ethylene. The molecule is planar in the gas phase. Formic anhydride Formic anhydride, also called methanoic anhydride, is an organic compound with the chemical formula and a structural formula of (H(C=O)−)O. It can be viewed as the anhydride of formic acid (HCOOH). Formic anhydride can be obtained by reaction of formyl fluoride with sodium formate
Muricholic acid (to give gly-murocholic acids) takes place in the liver before secretion. Tauro-muricholic acids were shown to be potent antagonists of the bile acid receptor farnesoid X receptor (FXR). Muricholic acid Muricholic acids are a group of bile acids found as one of the main forms in mice, which gives them their name, and at low concentrations in other species. Muricholic acids differ from the more common bile acids, such as cholic acid or chenodeoxycholic acid, by having a hydroxyl group at the 6-position. They are detectable at low concentrations in human urine. The three major bile acids in germ-free mice