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| L-Histidine |
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| Chemical Name： |
L-2-Amino-3-(4-imidazolyl)propionic
acid
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Structure Formula：
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Molecular Formula：
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C6H9N3O2
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Molecular Weight：
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Cas No：
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[71-00-1]
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Characteristics：
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White
crystalline powder
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Quality
Standards：
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AJI97
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Item
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Specifications (AJI97
)
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Appearance
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White crystalline powder
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Assay, %
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99.0~101.0
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Specific rotation
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+12.0º~+12.8º
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Loss on drying, %
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≤0.2
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Transmittance, %
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≥98.0
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Chloride (as Cl), %
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≤0.02
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Sulfate (as SO4),
%
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≤0.02
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Ammonium as (as NH4),
%
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≤0.02
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Iron (as Fe), %
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≤0.001
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Heavy Metals (as Pb), %
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≤0.001
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Arsenic (as As), %
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≤0.0001
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pH Value
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7.0~8.0
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Residue on ignition, %
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≤0.1
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Other amino acid
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Not
detd
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The Characteristics and Uses：
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Package
and Transport：
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This product is contained in a double-layer package, the inner
layer being a sealed nonpoisonous polyethylene bag or aluminium
foil, and the outer layer being a paper board barrel. Each barrel contains
a net weight of 25kg. Packages may be arranged in accordance with
customer’s requirements.
Handle with care. Protect the product from sunshine or rain.
Do not transport them together with poisonous or harmful goods.
This product belongs to the non-dangerous category and can be transported
as a general chemical product.
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Storage：
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Stored in dry, clean and ventilated places. In order to avoid
pollution, it is prohibited to place this product together with
poisonous or harmful substances. The expiry date is for two years.
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