Appearance White powder Assay (HPLC) 98.0% Min. Heay metals ≤5ppm water content ≤0.5%

Appearance white or light yellow crystal Assay,HPLC 99%min Melting point 168-171℃ Solubility Clear,colorless or light yellow solution Loss on drying 0.5% max Heay metals 5ppm max

Appearance Yellow to pale yellow powder Assay 98%min Heay metals 5ppm max Water content 0.5% max

Appearance White powder Assay 98%min Melting point 82-84

Appearance Yellow powder Assay 98%min Heay metals 5ppm max Water content 0.5% max

Appearance White powder Assay AC

Appearance White to off-white powder Solubility Clear colorless solution at 1G plus 100ml water Water 10% max Get strength(1% Gel) 1200g/cm2 min EEO(Electroendosmosis(-Mr) 0.13 max Sulfate 0.15% max Ash 0.5% max Gelling point(1.5% Gel) 36℃±1.5℃ Melting point(1.5% Gel) 88℃±1.5℃ DNase None RNase None Protease None Endonuclease/ligase inhibitory factor None

Appearance Colorless to light yellow transparent liquid Assay 98.5%min

Chitosan 9012-76-4 90%,95%

Fmoc-Thr(tBu)-OH 71989-35-0 C23H26NO5 98%min white powder,98%min

Content 99．0 min% Loss on drying 2.0% The Acid & Alkalinity ≤0.2ml Appearance Free flowing white powder Clarity of Solution Clear & Colourless Chlorides ≤0.02% Total Chlorine ≤0.03% Heay Metal ≤0.001% Arsenic ≤0.0003% Mercury ≤0.0001%

Appearance white or  light yellow powder Assay 95%min PH 7.0-8.5 Volatiles 5.0% max