USD $1.80-2.50 / Kilogram
USD $100.00-150.00 / Kilogram
USD $0.40-1.00 / Metric Ton
USD $100.00-150.00 / Kilogram
USD $32.00-34.00 / Metric Ton
iso9001 certified manufacturer
quality: adopting fermentation technology to assure the high quality. no-animal raw material
price: offering the best price during the suppliers in china.
rich material and energe make us control the cost effectively
service: reponse inquiry in 24 hours. fast delivery
certificates:we can offer all kinds of certificates that you need for importing. such as: iso9001, gmp,kosher ,halal etc
description:
abbreviation: |
l-thr |
cas number: |
72-19-5 |
conforms to: |
aji, usp, ep |
chemical name: |
(2s,3r)-2-amino-3 -hydroxybutanoic acid |
chemical formula: |
c4h9no3 |
molecular weight: |
119.12 |
nitrogen content: |
0.1176 |
assay: |
99.0 to 101.0% |
solubility: |
soluble in water |
property: |
white crystals or crystalline powder; slightly sweet taste |
l-threonine is classified as an essential amino acid. humans do not synthesize l-threonine, so it must be obtained through the diet. the male adult’s daily requirement is 7 mg per kg of body weight. most people will get sufficient l-threonine through the diet, but as threonine content in grains is low, vegetarians are more likely than others to have deficiencies and should consider supplementation.
l-threonine is a key component of collagen, elastin and enamel proteins. it aids in proper fat metabolism in the liver; nutrients are more readily absorbed when threonine is present. l-threonine also helps the digestive and intestinal tracts function more smoothly. experts believe that l-threonine enhances the immune system by aiding in the production of antibodies.
applications:
l-threonine is an essential amino acid, mainly used in pharmaceutical, chemical reagents, food fortifiers, and feed additives. in particular, the amount used in feed additives grows rapidly. l-threonine with the feed has the following characteristics: ① can adjust the amino acid balance in the feed to promote livestock growth; (2) to improve the meat; (3) improve the nutritional value of amino acid with low digestion rate ④ can reduce feed raw material costs; in the eu (mainly germany, belgium, denmark, etc.) and the american states, it has been widely used in feed industry.
specifications:
item |
specification( aji92) |
results |
identification |
meets the requirements |
conforms |
appearance |
white crystals or crystalline powder;
powdercrystalline |
conforms |
stata of solution (transmittance t430) |
clear and colorless not less than 98.0%
|
98.5% |
specific rotation [α]d20 |
-27.6°to -29.0° |
-28.3° |
chloride(cl) |
not more than 0.020% |
less than 0.02% |
ammonium (nh4) |
not more than 0.02% |
less than 0.02% |
sulfate(so4) |
not more than 0.020% |
less than 0.02% |
iron(fe) |
not more than 10ppm |
less than 6ppm |
arsenic (as2o3) |
not more than 1ppm |
less than 1ppm |
other amino acids |
not detected |
conforms |
heavy metals(pb) |
not more than 10ppm |
less than 10ppm |
loss on drying |
not more than 0.20% |
0.05% |
residue on ignition (sulfated) |
not more than 0.10% |
0.05% |
assay |
99.0% to 100.5% |
99.6% |
ph |
5.2 to 6.2 |
5.8 |