glycylglyine 556-50-3

payment method: t/t
product name: gly-gly cas#: 556-50-3
synonyms: n-glycylglycine molecular formula: c4h8n2o3
nh2ch2conhch2cooh molecular weight: 132.12

specifications:
item
standard

state of solution
(transmittance)
clear and colorless
not less than 95.0%

chloride (cl)
not more than 0.020%

ammonium (nh4)
not more than 0.02%

sulfate (so4)
not more than 0.020%

iron (fe)
not more than 30ppm

heavy metal(pb)
not more than 10ppm

arsenic(as2o3)
not more than 1ppm

other amino acids
chromatographically
not detectable

loss on drying
not more than 0.20%

residue on ignition(sulfated)
not more than 0.15%

assay
98.5 to100.5%

556-50-3