L-LEUCINE

Chemical Formula	C6H13NO2
Molecular Weight	131.17
[Compositional Specifications of L-Leucine]
Content	After drying, L-Leucine contains 98.5~101.5% L-leusine (C6H13NO2).
Description	L-Leucine is white glossy thin platelet or crystalline powder.
Identification	L-Leucine sublimes at 150°.
Purity	(1) Specific Rotation : 4 g of L-Leucine is precisely weighed and dissolved in 6 N hydrochloric acid. The total volume is brought up to 100 ml. Optical rotation of this solution is measured. When it is converted into a dehydrated form, it should be [α](20, D)= +14.5∼+16.5°      (2) Heavy Metals : 1 g of L-Leucine is tested following the procedure in Purity (2) for [L-Glutamic Acid] (Not more than 20ppm).    (3) Lead : 0.8 g of L-Leucine is tested following the procedure in Purity (3) for [L-Glutamic Acid] (Not more than 10ppm).
Loss on Drying	When L-Leucine is dried for 3 hours at 105°, the loss should not be more than 0.2%.
Residue on Ignition	Residue after ignition should not be more than 0.1%.
Assay	After drying, approximately 0.4 g is precisely weighed and dissolved in 3 ml of formic acid and 50 ml of glacial acetic acid. This solution is titrated with 0.1 N perchloric acid solution (indicator : 2 drops of crystal violet buffered in glacial acetic acid). At the end point, the solution turns bluish green. Separately, a blank experiment is done following the same procedure.             0.1 N perchloric acid solution 1 ml= 13.12 mg C6H13NO2

    L-LEUCINE has been presented above, want more similar products, please click l leucine,l leucine alpha.
    Our L-LEUCINE is good in quality and competitive in price. We manufacture L-LEUCINE and supply OEM, ODM service according to your requirement.
    If you want more detailed information of this product or related problems, please contact with us, we will reply as soon as possible (general in 24 hours).
Category: L-LEUCINE