Views:0 Author:Site Editor Publish Time: 2021-09-03 Origin:Site
L-carnitine, vitamin BT, chemical formula is C7H15NO3, chemical name is (R) -3-carboxy-2-hydroxy-N,N, N-trimethylpropyl ammonium hydroxide internal salt, on behalf of the drug is l-carnitine. It is a kind of amino acid to promote the conversion of fat into energy, pure white lens or white transparent fine powder, easily soluble in water, ethanol, methanol, slightly soluble in acetone, insoluble in ether, benzene, chloroform, ethyl acetate. L-carnitine is easy to absorb moisture, has good water solubility and water absorption, can withstand high temperature above 200℃. Red meat is the main source of l-carnitine, and the human body can also be synthesized to meet physiological needs. It's not really a vitamin, it's just something like a vitamin. It has many physiological functions such as fat oxidation decomposition, weight loss, anti-fatigue and so on. As a food additive, it is widely used in infant food, weight loss food, athlete food, nutritional supplements for middle-aged and elderly people, nutritional fortifier for vegetarians and animal feed additives.
Appearance for white lens or white transparent fine powder, slightly special smell. It is easily soluble in water, ethanol, methanol, slightly soluble in acetone, insoluble in ether, benzene, chloroform, ethyl acetate. Easy to absorb moisture, exposure to air will deliquescence and may even liquefied. It can be placed in solution of pH 3 ~ 6 for more than 1 year, and can withstand high temperature of more than 200℃. Its combination bond and bond group have good water solubility and water absorption
L-carnitine belongs to the zwitterion, when the pH is neutral, l-carnitine in the form of the ester, good stability. Different from common amino acids, l-carnitine without amino, but carry a positively charged quaternary ammonium groups, is not affected by pH condition, and chelation process not only can occur in the four-member ring is formed on the carboxyl, can also occur in six-member ring is formed on the hydroxyl and carboxyl, so it can with a variety of many metal ions to form stable chelate, such as copper, zinc, manganese, magnesium, calcium, etc., Possible structure as shown in the figure below, the actual use, due to the hygroscopicity of l-carnitine is strong, easy to agglomerate, at room temperature are usually prepared to use the principle of the preparation of l-carnitine as a hygroscopic salt, such as L - carnitine tartaric acid, L - carnitine fumaric acid ester and acetyl L - carnitine galactose acid ester of calcium and magnesium salts, now also have research synthesis of L - carnitine orotic acid salt, etc., Convenient for storage, transportation and packaging.