DL-Methionine

• 

Optical Activity of DL-Methionine
As a racemic mixture, DL-methionine isoptically inactive, with a specific optical rotation of[α]_D^25=0°(measured in 5% aqueous solution). This is because the dextrorotatory effect of L-methionine ([α]_D^25=+21.5°) and the levorotatory effect of D-methionine ([α]_D^25=-21.5°) cancel each other out exactly in the equimolar mixture.
The optical activity of DL-methionine can be restored by chiral resolution: if DL-methionine is separated into pure L-methionine and D-methionine by methods such as fractional crystallization or chiral chromatography, the two enantiomers will exhibit opposite optical rotation directions and equal absolute values of specific optical rotation.

Другие товары поставщика

	DL-Methionine	Acid-Base Properties of DL-MethionineDL-Methionine is a neutral amino acid, and its acid-base behavior is derived from the amphoteric nature of the...
	Glycine	Glycine is a food-grade amino acid approved by the state. Due to its high safety, sweet taste, and multiple functions such as enhancing flavor, buf...
	L-proline	The uses of L-prolineIn the field of medicine: In the pharmaceutical industry, L-proline can be used as a raw material for amino acid infusions, an...
	L-Lysine monohydrochloride	Appearance and Crystallinity ofL-Lysine monohydrochloride Pure state: White, odorless, crystalline powder or prismatic crystals (orthorhombic ...
	DL-Alanine	DL-Alanine is thermally stable under normal conditions but is sensitive to prolonged high temperatures, which may cause partial decomposition (e.g....

Похожие товары

	L-Lysine monohydrochloride as nutrient additives	Продавец: Shanghai Yifu Food Ingredients Co., Ltd	Free L-lysine is highly hygroscopic—it absorbs atmospheric moisture rapidly at relative hum...
	L-Lysine monohydrochloride	Продавец: Shanghai Yifu Food Ingredients Co., Ltd	L-Lysine monohydrochloridehas a higher aqueous solubility than free L-lysine: ~70 g/100 mL at 25 ...
	L-Lysine monohydrochloride	Продавец: Shanghai Yifu Food Ingredients Co., Ltd	The most prominent performance advantage ofL-Lysine monohydrochloride is its optimized physical a...
	L-Lysine monohydrochloride	Продавец: Shanghai Yifu Food Ingredients Co., Ltd	L-Lysine monohydrochloride (L-Lys·HCl) is the dominant commercial form of L-lysine—a...
	L-lysine monohydrochloride	Продавец: Shanghai Yifu Food Ingredients Co., Ltd	L-lysine monohydrochloride’s unique physical and chemical properties make it the preferred ...