Lysine-dextrans are dextran derivatives carrying both free primary amines and free carboxylates. Lysine is naturally occurring amino acid and a popular moiety for conjugation and fixation in biochemistry and life sciences. All batches are checked for molecular weight, degree of substitution and loss on drying. TdB labs produce lysine-dextran from 4 kDa to 500 kDa. Lysine-dextran is supplied as a white powder.

Our high-quality lysine-dextran offers:

  • Excellent MW distribution (Low Pd)
  • High quality, white and pure powder formulations
  • Good stability and performance
  • Fixability in cells and tissue
  • Easy conjugation to dyes or biomolecules
  • Full water solubility

Can’t find what you are looking for? We can always produce a customised product for you. Read more here.

Lysine-dextrans are well-characterised dextran fractions derived from Leuconostoc mesenteroides to which lysine is coupled.

Storage and stability
Lysine-dextran is stable for more than 6 years when stored dry in well-sealed containers at ambient temperature.

Lysine-dextran dissolves readily in water.

Lysine-dextran can be labeled with dyes or biomolecules under mild conditions and fixes well in cells and tissue when treated with formaldehyde or glutaraldehyde. Read more about application here.


Have you cited this product in a publication? Let us know so we can reference it.

How to order

Visit our webshop to see the molecular weights and pack sizes available. Please send an e-mail to if you would like to receive a quote, place a bulk order or if you wish to place your order manually.

In need of an expert on
dextran derivatives?

Let TdB Labs’ products and services help you achieve your research goals.






What do you think about this website?