L-Threonine

Post Date:
Feb 21,2014
Expiry Date:
Aug 20,2014
Detailed Description:
Cas No. :72-19-5 Specs:Feed Grade
Test ltem Specification
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Appearance "White crystals or crystalline powder
State of solution(Transmittance) Not Less Than 98.0%
PH 5.0~6.5
Specific rotation [α]D20° 27.6~-29.0.-26.7~-29.1.
Ammonnium(NH4) Not More Than 0.020%
Chloride (CI) Not More Than 0.020%
Sulfate(SO4) Not More Than 0.020%
lron(Fe) Not More Than 10ppm
Heavy metals(as Pb) Not More Than 10ppm
Arsenic (As2O3) Not More Than 1ppm
Loss on drying Not More Than 0.20%
Resdue on ignition Not More Than 0.10%
Foreign amino acids NOt Detected
Pyrogen* Free
Assay (dry basis) 99.0~101.0%
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CAS Registry Number:
72-19-5
Synonyms:
;L-2-Amino-3-hydroxybutyric acid;L-Threonine, USP Grade;L-Threonine, allo-Free;H-Thr-OH;(2S,3R)-(-)-Threonine;Thr;(2S,3R)-2-Amino-3-hydroxybutyric acid;2-Amino-3-hydroxybutanoic acid;1-(4-fluorophenyl)-2,5-dimethyl-1H-pyrrole-3-carbaldehyde semicarbazone;Threonine;L-Threonin;
Molecular Formula:
C₄H₉NO₃
Molecular Weight:
119.1192
Molecular Structure:
Safety Description:
S24/25:;

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