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Streptavidin-dextran conjugates are soluble dextrans with the streptavidin covalently linked to the polymer. The product is water soluble and has strong binding affinity towards biotin. They are versatile polymers that can be used to increase the valency of biotinylated reagents.

Fina Biosolutions provides Streptavidin-dextrans with dextran backbones of 250 kDa, 500 kDa and 2000kDa. The conjugates are purified by size exclusion chromatography to remove non-conjugated molecules. Custom ratios & configurations and bulk amounts are available. Please inquire.

Specifications:

Dextran Mw	Type	SA/dextran
250 kDa	n/a	~5
500 kDa	Low	5
	High	20
2000 kDa	Low	20

A certificate of analysis is provided with each conjugate.
Streptavidin dextran conjugates provided are in sterile PBS at 100µg/ml.

Storage Conditions: Store at 4°C. Protect from light.

Molecular Weight	Size (100 µg/ml)	Price	Size (100 µg/ml)	Price
SA-2000kDa dex low ratio	100 ug	$325	500 ug	$1200
SA-500 kDa dex high ratio	100 ug	$325	500 ug	$1200
SA-500 kDa dex low ratio	100 ug	$325	500 ug	$1200
SA-250 kDa Dextran	100 ug	$325	500 ug	$1200