TdB Labs company

About the company

TdB Labs

TdB Labs AB is a family owned Swedish biotech company. We are specialised in the development and manufacturing of dextran derivatives and other polysaccharides. We offer fluorescent derivatives with FITC, TRITC, ATTO™-dyes and our proprietary Antonia Red™-dye. Our non-fluorescent derivatives include e.g. different variants of dextran sulfate, including dextran sulfate sodium (DSS) for colitis.

Thanks to our capability to offer customised polysaccharides, TdB Labs can offer products that cannot be found anywhere else. Making customised products entails not only chemical synthesis but also extensive quality control aspects as well as technical documentation.
Our products are employed widely in Life Sciences ranging from permeability studies, cell preservation and animal studies to applications in processing of clinical products. Our polysaccharide derivatives can also be used in diagnostic kits and as molecular markers.

With our analytical service, we provide a comprehensive service along with technical support. We offer a series of analyses specific to charged and uncharged polysaccharides. This includes molecular weight determination using gel permeation chromatography (GPC), also called size exclusion chromatography (SEC).


In 2015 TdB Labs became ISO 9001 certified.


The laboratories and offices of TdB Labs are located in Ultuna, six kilometres south of Uppsala and 30 min. from Arlanda. We have modern and spacious laboratories for an expanding business. Ultuna is the main campus for the Swedish University of Agricultural Sciences and is also host for many growing life science companies.

Business idea and vison

TdB Labs is a result of more than 50 years of experience of polysaccharides. Our business strategy is to continuously develop our competence in the field of polysaccharide chemistry for commercial use and attract customers world-wide seeking our knowledge in order to succeed with their projects. Our work is characterized by high professional standard, teamwork, close collaboration with customers and a flexible and effective service. Our vision is to be a company providing world-class polysaccharide products and services that enable our customers to succeed with their projects.

In need of an expert on
dextran derivatives?

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




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