ETHYL 2-HYDROXY-2-METHYL-3-OXOBUTANOATE (4-13C, 99% 2-METHYL-D3, 98%)

Must ship on dry ice or gel pack. Pro R chiral precursor for Valine and Leucine used in e. coli protein expression for BioNMR applications. Product requires hydrolysis before use. Instructions are sent with product. 0.25 g of precursor is added to 1L of cell culture media, 1g is added to 4L of media. Use cold pack for domestic overnight shipments. Use Dry ice for longer shipping periods. Pro R chiral precursor for Valine and Leucine used in e. coli protein expression for BioNMR applications. Product requires hydrolysis before use. Instructions are sent with product. 0.25 g of precursor is added to 1L of cell culture media, 1g is added to 4L of media.