Catalog No. Size PriceQuantity
M13328-2 Contact for quotation $100
M13328-10 Contact for quotation $100


BIO-1211 is a highly selective and orally active α4β1 (VLA-4) inhibitor, with IC50 values of 4 nM and 2 μM for α4β1 and α4β7, respectively.

Product information

CAS Number: 187735-94-0

Molecular Weight: 708.80

Formula: C36H48N6O9

Chemical Name: (2S)-1-[(2S)-2-[(2S)-3-carboxy-2-[(2S)-4-methyl-2-[2-(4-{[(2-methylphenyl)carbamoyl]amino}phenyl)acetamido]pentanamido]propanamido]-3-methylbutanoyl]pyrrolidine-2-carboxylic acid

Smiles: CC1=CC=CC=C1NC(=O)NC1C=CC(CC(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](C(C)C)C(=O)N2CCC[C@H]2C(O)=O)=CC=1


InChi: InChI=1S/C36H48N6O9/c1-20(2)17-26(38-29(43)18-23-12-14-24(15-13-23)37-36(51)40-25-10-7-6-9-22(25)5)32(46)39-27(19-30(44)45)33(47)41-31(21(3)4)34(48)42-16-8-11-28(42)35(49)50/h6-7,9-10,12-15,20-21,26-28,31H,8,11,16-19H2,1-5H3,(H,38,43)(H,39,46)(H,41,47)(H,44,45)(H,49,50)(H2,37,40,51)/t26-,27-,28-,31-/m0/s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: Soluble in DMSO

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

BIO-1211 almostly exhibits no activity for α1β1, α5β1, α6β1, αLβ2 and αIIbβ3.

In Vivo:

BIO-1211 (5 and 10 mg/kg, orally, once every other day) results in reduced cytokines expression, leukocyte trafficking, and inhibition of inflammatory responses in EAE in a dose-independent manner. BIO-1211 exhibits a considerable depletion in the EAE clinical score, which correlated with decreased expression of TNF-α, IL-17, IFN-γ and pervade of CD11b+ and CD45+ cells into the cerebral cortex.


  1. L L Chen, et al. Multiple activation states of integrin alpha4beta1 detected through their different affinities for a small molecule ligand. J Biol Chem. 1999 May 7;274(19):13167-75.
  2. Nourollah Ramroodi, et al. Prophylactic Effect of BIO-1211 Small-Molecule Antagonist of VLA-4 in the EAE Mouse Model of Multiple Sclerosis. Immunol Invest. 2015;44(7):694-712.
  3. K c Lin, et al. Selective, tight-binding inhibitors of integrin alpha4beta1 that inhibit allergic airway responses. J Med Chem. 1999 Mar 11;42(5):920-34.

Products are for research use only. Not for human use.

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