Wholesale 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.
Other supplier products
|
|
Inositol as an important nutritional fortifier in food |
Inositol is used as an important nutritional fortifier in food. As a natural vitamin‑like nutrient, it can supplement daily physiological nutrients... |
|
|
High purity L-lysine monohydrochloride |
In industrial production and application, the following physicochemical properties are the core quality control indices for L-lysine monohydrochlor... |
|
|
L-tryptophan Raw Material |
Acid-Base Behavior of L-tryptophan
L-tryptophan is an amphoteric compound, capable of acting as both an acid (via carboxyl group) and a base (via a... |
|
|
DL-methionine powder |
The α-amino group in DL-methionine has the typical reactivity of a primary amine and can participate in acylation, alkylation, and condensati... |
|
|
High quality Glycine |
In the fields of industry and electroplating, glycine is an excellent complexing agent, buffer, and electroplating additive. In the electroplating ... |
All supplier products
Same products