SD 208

Catalog # Availability Size / Price Qty
SD 208 | CAS No. 627536-09-8 | TGF-beta Receptor Inhibitors
1 Image
Description: Potent ATP-competitive TGF-βRI inhibitor

Chemical Name: 2-(5-Chloro-2-fluorophenyl)-4-[(4-pyridyl)amino]pteridine

Purity: ≥98%

Product Details
Citations (10)
Supplemental Products

Biological Activity

SD 208 is a potent, orally active ATP-competitive transforming growth factor-β receptor 1 (TGF-βRI) inhibitor (IC50 = 49 nM). Displays > 100-fold and > 17-fold selectivity over TGF-βRII and other common kinases respectively. Exhibits anti-inflammatory and antitumor activity. Also promotes an antiglioma immune response. Ameliorates germinal matrix hemorrhage-induced neurological deficits in neonatal rats.

Technical Data

Soluble to 20 mM in DMSO with gentle warming
Store at RT

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.

Product Datasheets

Or select another batch:
Reconstitution Calculator
Molarity Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Molarity Calculator


*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / CoA (available online).

Citations for SD 208

The citations listed below are publications that use Tocris products. Selected citations for SD 208 include:

10 Citations: Showing 1 - 10

  1. An IL-15 superagonist/IL-15Rα fusion complex protects and rescues NK cell-cytotoxic function from TGF-β1-mediated immunosuppression.
    Authors: Fujii Et al.
    Cancer Immunol Immunother  2018;67:675
  2. Transforming growth factor β1-mediated functional inhibition of mesenchymal stromal cells in myelodysplastic syndromes and acute myeloid leukemia.
    Authors: Geyh Et al.
    Haematologica  2018;103(9):1462
  3. The Wound Microenvironment Reprograms Schwann Cells to Invasive Mesenchymal-like Cells to Drive Peripheral Nerve Regeneration.
    Authors: Clements Et al.
    Neuron  2017;96:98
  4. TGF-β activates APC through Cdh1 binding for Cks1 and Skp2 proteasomal destruction stabilizing p27kip1 for normal endometrial growth.
    Authors: Pavlides Et al.
    Cell Cycle  2016;15:931
  5. MetF. inhibits proliferation and migration of glioblastoma cells independently of TGF-β2.
    Authors: Seliger Et al.
    Cell Cycle  2016;15:1755
  6. Protons sensitize epithelial cells to mesenchymal transition.
    Authors: Wang Et al.
    PLoS One  2012;7:e41249
  7. Transforming growth factor-β evokes Ca2+ waves and enhances gene expression in human pulmonary fibroblasts.
    Authors: Mukherjee Et al.
    Am J Respir Cell Mol Biol  2012;46:757
  8. Transforming growth factor-β regulates the growth of valve interstitial cells in vitro.
    Authors: Li and Gotlieb
    Am J Pathol  2011;179:1746
  9. Hepcidin regulation by innate immune and infectious stimuli.
    Authors: Armitage Et al.
    Blood  2011;118:4129
  10. Differential effects of alendr. and los. therapy on osteopenia and aortic aneurysm in mice with severe Marfan syndrome.
    Authors: Nistala Et al.
    PLoS One  2010;19:4790


No product specific FAQs exist for this product, however you may

View all Small Molecule FAQs

Reviews for SD 208

There are currently no reviews for this product. Be the first to review SD 208 and earn rewards!

Have you used SD 208?

Submit a review and receive an Amazon gift card.

$25/€18/£15/$25CAN/¥75 Yuan/¥1250 Yen for a review with an image

$10/€7/£6/$10 CAD/¥70 Yuan/¥1110 Yen for a review without an image

Submit a Review
Tocris Bioscience is the leading supplier of novel and exclusive tools for life science research with over 30 years' experience in the industry. Tocris is a Bio-Techne brand.