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Specialty Immunoreagents

Fina Biosolutions’ Specialty Immunoreagents are a collection of reagents mainly of interest to immunologists. These reagents arose out of both our own research and requests from other scientists. Please let us know if there is a reagent you would like us to make.

TNP-Dextran and TNP-Ficoll are classic T-cell independent model antigens. Due to the wide available of TNP immunoreagents, they serve as useful models of natural T-cell independent antigens like polysaccharides. TNP-OVA and TNP-BSA serve as T-cell dependent model antigens with the trinitrophenyl epitope. The set of TNP reagents also allows for the selection of a suitable ELISA antigen.

Our phosphorylcholine (PC) conjugates are based on the method of Chesboro and Metzger utilizing p-diazonium phenylphosphorylcholine.

Biotin labeled heparin is used in the identification of heparin binding sites. Our heparin conjugation utilizes the terminal end of heparin polymer resulting in minimum modification of the heparin.


Bulk and custom quotes on request. For Pricing, please contact:
We provide our fluorescent dextrans as a lyophilized powder.

Trinitrophenol (TNP)

Product No. Volume Price Volume Price
TNP-Bovine Serum Albumin TNP-BSA-01 10 mg $75 100 mg $350
TNP-Ovalbumin TNP-OVA-01 10 mg $75 100 mg $350
TNP-Ficoll(400) TNP-Ficoll-01 10 mg $75 100 mg $350


TNP-Dextran(T2000) TNP-Dextran-01 10 mg $75 100 mg $350


Product No. Volume Price
PC-Bovine Serum Albumin PC-BSA-01 10 mg $200
PC-Ovalbumin PC-OVA-01 10 mg $200


pARS-Bovine Serum Albumin pARS-BSA-01 10 mg $200
pARS-Ovalbumin pARS-OVA-01 10 mg $200


Product No. Volume Price Volume Price
MonoBiotin-Heparin mBiotin-Hep-01 1 mg $100 10 mg $400
Heparin-BSA BSA-Hep-01 1 mg $125 10 mg $400
Mono amino Heparin mA-Hep-01 1 mg $100 10 mg $350

Safety & Handling

Non-toxic. Avoid contact with skin and eyes. Product may be discarded down drain. Personal protective equipment is advised as product will stain skin and clothing. Product is intended for research purposes only.


  1. Mond, J. J., Lees, A., Snapper, C. M. 13:655, 1995. T cell-independent antigens type 2. Ann Rev Imm.
  2. Mond, J. J., Vos, Q., Lees, A., Snapper, C. M. 7:349, 1995. T cell independent antigens. Curr Opin Immunol.
  3. Chesboro and Metzger. 11:766, 1972. Affinity Labeling of a Phosphorylcholine Binding Mouse Myeloma Protein. Biochemistry.
  4. Zou et al. 103:889, 1992. Heparin-binding properties of lactoferrin and lysozyme. Comp Biochem Physiol B
  5. Yu W, Hill JS. 343:659, 2006. Mapping the heparin-binding domain of human hepatic lipase. Biochem Biophys Res Commun
  6. Salamat-Miller N et al., Mol Cell Proteomics. 5:2263, 2006. A network-based analysis of polyanion-binding proteins utilizing yeast protein arrays


  • About FinaBio
    Characterization of Fina Biosolutions’ Amino-Dextran
  • About FinaBio


9430 Key West Ave., Suite 200
Rockville, MD 20850
877-346-2246 (877-FinaBio)
301-633-0464 (Andrew Lees, Scientific Director)

About Us

Fina Biosolutions, LLC was founded in 2006 by Dr. Andrew Lees with an initial focus on helping emerging market vaccine manufacturers learn to make affordable conjugate vaccines. FinaBio has since grown to offer a variety of bioconjugation and protein services. The company is located in the heart of Maryland’s biotechnology corridor.