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Dongyang Dental Equipment Co.,Limited
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L-Serine

L-Serine

Place of Origin : China
Brand Name : DY
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Item

Specification (USP28)


Description

White crystalline powder


Identification

Infrared Absorption


Specific rotation [α]D25

+14.0 to +15.6°


Loss on drying

Not more than 0.2%


Residue on ignition(sulfated)

Not more than 0.1%


Chloride (Cl)

Not more than 0.05%


Sulfate (SO4)

Not more than 0.03%


Iron (Fe)

Not more than 0.003%


Heavy metals (Pb)

Not more than 0.0015%


Lead

Not more than 1 ppm


Arsenic

Not more than 1 ppm


Chromatographic purity

Not more than 0.5% of any individual impurity is found.

Not more than 2.0% of total impurities is found.


Organic volatilc impurities

Meets the requirement


Assay

98.5 to 101.5 %

(Calculated on the dried basis)



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