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Product Details
L-Methionine
Product Description
Chemical Name: 2-amino-4-(methylthio)-butyric acid
Molecular Formula: C5N11NO2S
Molecular Weight: 149.1
CAS No: 63-68-3
Characteristics: White crystals or crystalline powder
Quality Standards: USP24, FCCIV, AJI92
Packaging and Storage: In 25kgs fiber drum double polyethylene bags inside; Preserve in well-closed containers, at controlled room temperature.
Recommended limit: 1 year.
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Item |
Specifications |
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AJI92 |
USP24 |
FCC IV |
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Description |
White crystals or crystalline powder |
Colorless or white lustrous plates, or a white crystalline powder, it has slight, characteristic odor. |
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Identification |
Infrared absorption spectrum |
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Specific rotation |
+23.0 - +24.0 |
+22.4- +24.7 |
+21.0- +25.0 |
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State of solution (Transmittance) |
≥ 98.0% |
--- |
Soluble in water, alkali solutions and in dilute mineral acids |
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Chloride(CL) |
≤ 0.020% |
≤ 0.05% |
--- |
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Sulfate(SO4) |
≤ 0.020% |
≤ 0.03% |
--- |
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Ammonium(NH4) |
≤ 0.02% |
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--- |
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Heavy metals(Pb) |
≤ 10PPm |
≤ 0.0015% |
≤ 10ppm |
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Lead |
--- |
--- |
≤ 10mg/kg |
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Iron(Fe) |
≤ 10PPm |
≤ 0.003% |
--- |
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Arsenic(As2O3) |
≤ 1PPm |
--- |
--- |
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Other amino acids |
Conforms |
--- |
--- |
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Loss on drying |
≤ 0.20% |
≤ 0.30% |
≤ 0.5% |
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Residue on ignition (sulfated) |
≤ 0.10% |
≤ 0.40% |
≤ 0.1% |
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Assay |
99.0--- 101.0% |
98.5-101.5% |
98.5-101.5% |
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PH |
5.6-6.1 |
5.6-6.1 |
--- |
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O. V. I |
--- |
Meet the requirements |
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