FITC-inulin is synthesized by reacting fluoresceinyl isothiocyanate (FITC) with inulin from dahlia tubers. The product is a yellow powder that is readily soluble in water. All the batches are checked for molecular weight, degree of substitution, loss on drying and free FITC. TdB Labs produces FITC-inulin at a molecular weight of 4.5 kDa.

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

An inulin fraction obtained from dahlia tubers is labelled with fluorescein. The fluorescein moiety is attached by a stable thiocarbamoyl linkage and the labelling procedure does not lead to any depolymerization of inulin. FITC-inulin possesses from 0.001-0.008 mol FITC per fructose unit. At these low levels of substitution, the effect of the charges is minimal.

Spectral data
FITC-inulin has an excitation maximum of 490 – 495 nm and an emission maximum of 520 ± 5 nm.

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

FITC-inulin dissolves readily in water.

Inulin has long been used for monitoring renal clearance. FITC-inulin offers a simple and sensitive alternative to the cumbersome chemical assays of inulin and permits real time analyses. Read more about applications 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?