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Melatonin

Brand:Hebei Hengguan Chemical Co.,Ltd
Category:API's
Views: times
Introduction:CAS No.:73-31-4
Products Information

ITEM

SPECIFICATION

APPEARANCE: WHITE-LIKE OR
YELLOISH POWDER
IDENTITY(UV): COMPLIES
MELTING POINT: 116-120℃
ASSAY(HPLC): 100±1%MIN.
PURITY(HPLC): 99.0%MIN.
RELATED SUBSTANCES: 1.0%MAX
RESIDUE ON IGNITION: 0.1%MAX
HEAVY METALS: 20PPM MAX
LOSS ON DRYING: 0.5%MAX
RESIDUAL SOLVENTS ETHANOL: 1000PPM MAX
MICROBIOLOGICAL TESTS
BACTERIA:
COMBINED MOLDS AND YEAST:
E.COLI.:
SALMONELLA:
 
3000/G MAX
300/G MAX
NEGATIVE
NEGATIVE

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