L-精氨酸USP31

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L-精氨酸USP31

CAS no.: 74-79-3

Test ItemsLimit

Identification

as per USP31

Specific  rotation

between +26.3o to +27.7o

Loss on drying

not more than 0.5%

Residue on ignition

not more than 0.3%

Chloride

not more than 0.05%

Sulfate

not more than 0.03%

Iron

not more than 0.003%

Heavy metals

not more than 0.0015%

Chromatographic purity

as per USP31

Organic volatile impurities

as per USP31

Residual solvents

conform the requirments

Assay

98.5% to 101.5%