BIRT 377

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Cat.No. 4776 - BIRT 377 | C18H15BrCl2N2O2 | CAS No. 213211-10-0
Description: Potent negative allosteric modulator of LFA-1
Chemical Name: (5R)-5-[(4-Bromophenyl)methyl]-3-(3,5-dichlorophenyl)-1,5-dimethyl-2,4-imidazolidinedione
Purity: ≥98% (HPLC)
Datasheet
Citations
Literature

Biological Activity

Potent negative allosteric modulator of LFA-1 (lymphocyte function-associated antigen-1) (Kd = 26 nM). Binds to the I-domain of LFA-1. Reversibly inhibits LFA-1 mediated binding of SKW3 leukemia cells to ICAM-1. Inhibits superantigen (SEB)-induced IL-2 production from lymphocytes in vitro and attenuates the SEB-induced increase in IL-2 plasma levels in a mouse model in vivo. Orally available.

Compound Libraries

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Technical Data

M. Wt 442.13
Formula C18H15BrCl2N2O2
Storage Store at +4°C
Purity ≥98% (HPLC)
CAS Number 213211-10-0
PubChem ID 9803375
InChI Key FJNJHZQMQRVZEE-GOSISDBHSA-N
Smiles CN([C@@](CC3=CC=C(Br)C=C3)(C)C(N1C2=CC(Cl)=CC(Cl)=C2)=O)C1=O

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

All Tocris products are intended for laboratory research use only.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
Solubility
DMSO 44.21 100
ethanol 22.11 50

Preparing Stock Solutions

The following data is based on the product molecular weight 442.13. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 2.26 mL 11.31 mL 22.62 mL
5 mM 0.45 mL 2.26 mL 4.52 mL
10 mM 0.23 mL 1.13 mL 2.26 mL
50 mM 0.05 mL 0.23 mL 0.45 mL

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Product Datasheets

Safety Datasheet

References

References are publications that support the products' biological activity.

Kelly et al (1999) Cutting edge: a small molecule antagonist of LFA-1-mediated cell adhesion. J.Immunol. 163 5173 PMID: 10553036

Wu et al (2004) Second-generation lymphocyte function-associated antigen-1 inhibitors: 1H-imidazo[1,2-alpha]imidazol-2-one derivatives. J.Med.Chem. 47 5356 PMID: 5481974

Last-Barney et al (2001) Binding site elucidation of hydantoin-based antagonists of LFA-1 using multidisciplinary technologies: evidence for the allosteric inhibition of a protein--protein interaction. J.Am.Chem.Soc. 123 5643 PMID: 11403595


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Literature in this Area

Immunology

Immunology Product Listing

A collection of over 190 products for immunology research, the guide includes research tools for the study of:

  • Chemokine and Cytokine Signaling
  • Chemotaxis
  • Complement System
  • Immune Cell Signaling
  • Inflammation

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