high purity L-Leucine L-Leucine cas 61-90-5 61-90-5 supplier
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L-Leucine Chemicalname isL-2-amino-3- (4 -hydroxyphenyl)propionic acid, CAS No.: 61-90-5 Molecule Formula:C6H13NO2 Molecul…
Description:
L-Leucine
Chemical name is L-2-amino-3 - (4 - hydroxyphenyl) propionic acid,
CAS No.: 61-90-5
Molecule Formula: C6H13NO2
Molecule Weight: 131.17
Property:
white glossy hexahedral crystals or white crystalline powder. Slightly bitter taste (DL-leucine was sweet). Sublimation at 145 ~ 148 ℃. Melting point 293 ~ 295 ℃ (decomposition). In the presence of hydrocarbons, its stable in inorganic acid aqueous solution. Each gram dissolves in about 40ml water or 100ml acetic acid. Slightly soluble in ethanol (0.07%), dissolved in dilute hydrochloric acid, alkali hydroxide and carbonate solution. Insoluble in ether.
An essential amino acid, adult male requirement (2.2g / d) (Japan). necessary for normal growth of infants and for adults to maintain normal nitrogen balance
Naturally exist in spleen and heart, in the form of the protein in a variety of animal and plant tissues.
Applications:
Nutritional supplements; flavoring agent.
Preparation of amino acid infusion and comprehensive amino acid preparations, hypoglycemic agents and plant growth promoters.
Specifications:
Item |
Specification( USP31) |
Results |
Description |
White crystals or crystalline powder,
powdercrystalline |
Conforms |
Identification |
As per USP30 |
Conforms |
Specific rotation [α]D20 |
+14.9°to +17.3° |
+15.7° |
Chloride(Cl) |
Not more than 0.05 % |
Less than 0.05% |
Sulfate(SO4) |
Not more than 0.03% |
Less than 0.02% |
Iron(Fe) |
Not more than 30ppm |
Less than 30ppm |
Arsenic |
Not more than 1.0ppm |
Less than 1ppm |
Heavy metals(Pb) |
Not more than 15ppm |
Less than 15ppm |
Loss on drying |
Not more than 0.2% |
0.12% |
Residue on ignition (sulfated) |
Not more than 0.4 % |
0.09% |
PH |
5.5 to 7.0 |
6.0 |
Assay |
98.5% to 101.5% |
99.6% |
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