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Premium Quality Dextran Derivatives

Using TdB’s premium products with narrow fractions (low PD) will give you reliable and reproducible results.

Looking for an expert on Dextran Derivatives? We produce, analyse and develop custom products for your project.

TdB Consultancy AB is a Swedish biotech company specialized in the development and manufacturing of dextran and dextran derivatives. In addition, we have expertise in most aspects of polysaccharide chemistry. This includes not only synthesis but also chemical and physical characterization; our latest addition is a GPC system equipped with light-scattering, viscosity and refractive index detection.

We specialize particularly in the synthesis of fluorescent derivatives of polysaccharides. We offer derivatives labelled with FITC, TRITC, ATTO™-dyes and our proprietary Antonia Red™-dye. Our portfolio consists of more than 30 product groups, of which 20 are fluorescent.

All products from TdB Consultancy are of premium quality. Our polysaccharide derivatives have a low polydispersity (PD) and high purity. This is especially important for permeability studies; a low PD gives much more reliable and reproducible result. Using TdB Consultancy products will help our customers achieve their research goals.

Our products are employed widely in Life Sciences ranging from permeability studies, cell preservation, animal studies to applications in processing of clinical products. Dextrans are also used in diagnostic kits and as molecular markers.

For a presentation of intravital studies using fluorescent dextrans pdfclick here.


2019-03-11: Are you our new Analytical Chemist?

TdB Consultancy is growing! We are looking for an analytical chemist who wants to join our team.
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2019-03-07: Read our latest newsletter!

Read our latest newsletter and learn more about our analytical services!
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2019-02-18: New distributor in South Korea

We are pleased to present Kim & friends Inc. as our new distributor in South Korea!
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2019-01-31: Read our first newsletter!

Get to know our new Marketing Manager and learn more about our latest products
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2019-01-14 New distributor in Taiwan

We are proud to present Biocommander International Co., Ltd. as our newest and first distributor in Taiwan.
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2018-12- 17 Notice: Christmas closure

We will be closed for Christmas Holidays from 22nd of December 2018 until 1st of January 2019.
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High quality analysis of your substance

We can now offer a series of analyses specific to charged and uncharged dextran and Polysucrose derivatives. This includes molecular weight determination using GPC (gel permeation chromatography), determinations of degrees of substitution for dextran sulfates.

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Let us develop and produce your customized product

An important part of our services comprises the development and production of customised products. This entails not only chemical synthesis but also Quality Control aspects; Specifications, Analytical methods, MSDS, biological assays and stability.

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TRITC dextran 40 (TD40)

TRITC dextran 40 (TD40)

Supplied as a red powder which is readily soluble in water and electrolytes.

812 SEK
Fact Value
Catalog no. TD40
Availability In stock
Mol.wt 35000-45000
Degree of substitution 0.001-0.008
Excitation 550 nm
Emission 571 nm