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Therapeutic injection grade 99% Boc-NH-PEG4-CH2CH2COOH


Boc-NH-PEG4-CH2CH2COOH Can be used to produce therapeutic products, radioactive grade, up to 99% pure.

The reaction was dispensed at a temperature of twenty-four h beneath argonon protection. When the reaction is terminated, the triethylamine coordination compound is removed by filtration, and also the filtrate is precipitated with ether, washed a pair of to three times, and dried in a very vacuum to get straw Ms-PEG-Ms with a yield of nearly 100 percent amination.


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