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HOME ->
PRODUCTS -> L-4-HYDROXY PROLINE
L-4-HYDROXILE PROLINE
SPECIFICATIONS
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ITEMS
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SPECIFICATIONS
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Description
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White crystal or
crystalline powder
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Identification
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Positive
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Specific Rotation
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-74° to -77°
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pH
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5.0 – 6.5
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Chloride (Cl)
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0.0020% Max.
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Ammonium (NH4)
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0.020% Max.
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Sulfate (SO4)
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0.020% Max.
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Heavy Metals
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10 ppm Max.
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Iron (Fe)
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10 ppm Max.
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Arsenic (As2O3)
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1 ppm Max.
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Other Amino Acids
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Conforms
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Loss on Drying
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0.20% Max.
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Residue on Ignition
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0.10% Max.
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Assay
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98.5 – 101.5%
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