Sell Melatonin, D-Biotin

Melatonin, D-Biotin You May Also Be Interested In: biotin cosmetic raw materials d biotin melatonin
Melatonin
cosmetic raw materials
CHARACTERISTIC WHITE CRYSTAL OR WHITE CRYSTALLINE POWDER
ASSAY(TCL) >=99.5%
WATER CONTENT 0.5%MAX
RESIDUE ON IGNITION >=0.5%MAX
HEAVY METAL 20ppm MAX
HPLC >=99.5%
D-Biotin
pharmaceutical and intermediates, Feed grade
Appearance White or white powder
D-biotin Content 97.5% ~ 100.5%
Identification Inrrared Absorption
Specific Rotation 890~ 930
Organic volatile impurity Meet USP requirements