N-Butyric add

Fig. 4-7. Separation of aliphatic monocarboxylic acids. — Separator column IonPac ICE-AS1 eluent 0.001 mol/L octanesulfonic acid flow rate 1 mL/min detection suppressed conductivity injection volume 50 pL solute concentrations 20 ppm formic acid and acetic acid, 40 ppm propionic acid, 40 ppm wo-butyric acid, and 60 ppm n-butyric add.

N-Butyric Add 160 166 2.19 13.4 Dry chemical, alcohol foam, carbon dioxide Water may be ineffective No data 842 No ... 

Hirayama, F., Ogata, T., Yano, H. et al. Release characteristics of a short-chain fatty add, n-butyric acid, from its (3-cyclodextrin ester conjugate in rat biological media. J. Pharm. Sci. 2000, 89, 1486-1495. 

More recently, Henning and Ammon (H19) described 10 aliphatic keto and aldehydic adds in normal urine. In addition to a-ketoglutaric, oxalacetic, pyruvic, glyoxylic, and a-ketoisocaproic acids, they found hydroxypyruvic, a-keto-y-methylthiobutyric, a-keto-fi-hydroxybutyric, a-keto-P-methylvaleric and a-keto-n-butyric acids, that is to say, the keto acids corresponding, respectively, to serine, methionine, threonine, isoleucine, and a-amino-n-butyric acid. They conclude that one finds in normal human urine the keto acids corresponding to all the amino adds normally present in urine, with the exception of those correspond-... 

CH4O CgHgO Acetone n-CgHgO THF n-C4Hi()0 Butyric add SA... 

Munoz, L. A. L. Kraehenbuehl, M. A. Isobaric vapor liquid equilibrium (VLE) data of the systems n-butanoi -1- butyric add... 

Electrolysis of a solution of potassium bifluoride in acetic add with platimun electrodes yields no fluorinated product/ but similar electrolysis of a solution of naphthalene in acetonitrile containing triethylamine hydrofluoride apparently gives a-fluoronaphthalene (4—5% yield) and other unspecified fluorinated compounds. The medianism shown in Scheme 1 has been proposed to account for the electrodiemical fiuorination of acetic acid-KHFi at a nickel anode. Kolbe electtolysis of heptafluoro-n-butyric acid has been shown to give perfluoro-n-hraume in ca. 20% yield. ... 

Simon-Colin, C., Kervarec, N., Pichon, R., and Deslandes, E. (2004) Purification and characterization of 4-methanesulfinyl-2-methylamino butyric add from the red alga Gratdoupia doryphora Howe. Phytochem. Rev., 3, 367-370. 

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