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| L-Tryptophan |
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| Chemical Name： |
2,4,5,6-Tetrachloropyrimidine
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Structure Formula：
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Molecular Formula：
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C11H12N2O2
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Molecular Weight：
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Cas No：
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[73-22-3]
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Characteristics：
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Quality Standards：
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FCCIV,
USP24 and etc.
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Item
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Specifications
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USP24
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FCCIV
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Appearance
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White
crystals or crystalline powder
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Assay,%(on dry matter)
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98.5~101.5
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98.5~101.5
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Specific
optical rotation
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-29.4º
~
-32.8º
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-30.0º
~
-33.0º
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pH
Value
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5.5~7.0
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-
- -
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Loss
on drying, %
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≤0.3
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≤0.3
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Heavy
Metals (as Pb), %
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≤0.0015
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≤0.002
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Residue
on ignition, %
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≤0.1
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≤0.1
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Chloride
(as Cl),%
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≤0.05
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-
- -
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Sulfate
(as SO4), %
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≤0.03
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-
- -
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Arsenic
(as As), %
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≤0.00015
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≤0.00015
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Iron, %
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≤0.003
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-
- -
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The
Characteristics and Uses：
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Package
and Transport：
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Packed with a polyethylene bag
for the inner layer and a Kraft paper board barrel for the outer layer, net
weight 25kg/drum. Packaging may be arranged according to
the requirement of the client.
Handle with care in order to avoid damaging the package. Protect them
from sunshine and rain. Do not transport them together with poisonous
or harmful goods. This product is a non-dangerous product and
can be transported as a general chemical product.
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Storage：
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Store in cool, shaded, dry and clean places. Do not store it together with poisonous or harmful goods in order to
avoid pollution. The limit of retained quality for two years.
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