Formic acid danger from formic acid is from skin or eye contact with the concentrated liquid or vapors. The U.S. OSHA Permissible Exposure Level (PEL) of formic acid vapor in the work environment is 5 parts per million parts of air (ppm). Formic acid Formic acid, systematically named methanoic acid, is the simplest carboxylic acid. The chemical formula is HCOOH or HCOH. It is an important intermediate in chemical synthesis and occurs naturally, most notably in some ants. The word "formic" comes from the Latin word for ant, "formica", referring to its early isolation by the distillation of ant bodies. Esters, salts,
Muricholic acid 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 are cholic acid, α-muricholic, and β-muricholic acids. In conventional mice, ω-muricholic acid, and various sulfated forms are also found. Conjugation with taurine (to give tauro-murocholic acids) or glycine