N-Acetylneuraminyl-α (2→6)-lactose [6'-Sialyllactose]
Origin
Prepared by enzymatic synthesis from N-acetylneuraminic acid and lactose.*1
Formula
C23H39NO19 (MW : 633.55)
N-Acetylneuraminyl-α (2→6)-lactose [6'-Sialyllactose]
NeuAc α (2→6)Gal β (2→6)Glc
Appearance
White amorphous powder.
Purity
More than 98% by HPLC
Homogeneous by thin layer chromatographic analysis.
Analytical methods
1. Thin layer chromatography (TLC)
TLC plate Silica Gel K5 (Whatman)
Solvent system n-Propanol : 1 M NH4OH : H2O (6 : 2 : 1)
Color reagent Resorcinol-hydrochloric acid*2

2. High performance liquid chromatography (HPLC)

Column Cosmosil 5NH2 (4.6 mm ID x 150 mm)
Eluent Acetonitrile 20 mM KH2PO4 (70 : 30)
Detection 210 nm
Storage
Stable for one year when stored on desiccated condition below 5 ºC.
References
*1. I. Maru, Y. Ohta, K. Okamoto, S. Suzuki, K. Kakehi, and Y. Tsukada, Biosci. Biotech. Biochem., 56, 1557 (1992)
*2. L. Svennerholm, Biochim. Biophys. Acta, 24, 604 (1957)
Package
1 mg
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