Product Category


ICH-Q7 GMP Manufactured Product


Low Bioburden, Low Endotoxin, GMP Manufactured

Product Code: DX70-3250

Intended for Use as an Excipient

Dextrans are used in diverse applications ranging from Vaccines, Ophthalmic, Protein Stabilization and Bulking Agent, to Cryopreservation, Organ Preservation, Blood Cell Separation and Blood Volume Expander. 

Product Specifications




Appearance of powder  

White or almost white powder

Appearance of solution



Acidity or Alkalinity



Specific Rotation (+/-)


+195° to +201°

Average molecular mass

64,000 – 76,000 Mw

Mw of 10% high fraction


≤185,000 Mw

Mw of 10% low fraction

≥15,000 Mw

Residual solvent, % by GC  Complies

Sulphated Ash

≤0.3 % w/w

Loss on drying (105°C, 5h)

≤7.0 % w/w

Total viable aerobic count (TAMC)

≤100 CFU/g




Infrared Absorption  


Color of Solution
(Absorbance at 375 nm, 6% sol., 4cm)


≤0.15 a.u.

pH (6% solution)

4.5 – 7.0

Specific Rotation (+/-)


+195° to +203°


34,000 – 48,000



1.4 – 1.9

Viscosity, intrinsic

24 – 29 ml/g

Nitrogen containing impurities  ≤100 ppm N

Alcohol and related impurities



≤0.03 % w/w

Loss on drying (105°C, 5h)

≤7.0 % w/w

Bacterial endotoxins (6% sol.)

≤0.5 EU/ml

Antigenic impurities Complies
Safety Complies
List of C of As files
No files available right now.

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CAS #: 9004-54-0



M.W.: 63000 - 77000
pH in aqueous solution: 4.5 - 7.5%

General Product Description:

  • The manufacturing of Dextran 70, DX70-3250 is performed at BioSpectra’s Rensselaer, NY facilities utilizing multi-use equipment. Equipment used in the manufacturing of DX70-3250 is cleaned in accordance with BioSpectra’s Process Cleaning Validation Master Plan.
  • Dextran 70 is a White Crystalline Product.
  • Molecular Formula: (C6H5O5)n
  • Molecular Weight: 63000 - 77000
  • CAS Number: 9004-54-0
  • There are no known major food allergens (as defined by FDA and WHO) in the manufacture of this product.
  • BioSpectra certifies that all Dextran 70, DX70-3250 manufactured at BioSpectra and its raw materials are not derived from or come in contact with animal parts, products, and/or byproducts.
  • Dextran 70 manufactured at BioSpectra and any raw materials used in the manufacture of Dextran 70 at BioSpectra are not subject to genetic modification.
  • Synonyms: Dextran

GMP Compliance:

Bio Excipient Grade Dextran 70, DX70-3250 is suitable for use as an excipient. It is manufactured in accordance with the ICH-Q7 Good Manufacturing Practice Guide. This grade of Dextran 70 is not suitable to be used as an Active Pharmaceutical Ingredient, Drug Product or Household Item.

Retest Date

The recommended expiration period for Dextran 70 is two years from the date of manufacture.

Storage and Shipping Conditions:

Ship and store in ambient temperature. Store in a clean and dry area. Store in the original container.

Package Sizes:

1kg, 5kg, 10kg, 25kg

Additional Packaging Information