n-acetyl-dl-leucine acid 99-15-0

payment method: t/t
product name: ac-dl-leu-oh cas #: 99-15-0
synonyms: n-acetyl-dl-leucine molecular formula: c8h15no3
molecular weight: 173.21

appearance white powder
ir spectrum in accordance with structure
loss on drying not more than 0.50%
assay 97.5% to 102.5%
transmittance not less than 98.0%
iron(fe)
not more than 15ppm
ammonium(nh4+) not more than 0.02﹪
chloride(cl) not more than 0.03%
heavy metal(pb) not more than 20ppm
arsenic(aso) not more than 2ppm
other amino acids
chromatographically
not detestable
residue on ignition not more than 0.20%
ph 1.7to2.8

99-15-0