CAS No. 188011-69-0

Batch: Purity:99.97
Bikinin Chemical Structure
Chemical Structure
Check the Bikinin product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 4-[(5-bromo-2-pyridinyl)amino]-4-oxobutanoic acid
CAS Number 188011-69-0
Molecular Formula

C9H9BrN2O3

Molecular Weight (MW) 273.08
SMILES C1=CC(=NC=C1Br)NC(=O)CCC(=O)O
InChIKey XFYYQDHEDOXWGA-UHFFFAOYSA-N

Biological Activity

Bikinin is an ATP-competitive plant GSK-3 kinase inhibitor that directly targets brassinosteroid-insensitive 2 (BIN2) alongside related GSK-3/SHAGGY-like kinases. By inhibiting BIN2 activity, bikinin prevents the phosphorylation and subsequent inactivation of key transcription factors, thereby stimulating downstream brassinosteroid signaling. This pathway activation drives plant cell expansion, tissue elongation, and phenotypic responses characteristic of brassinosteroid stimulation. [1]

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 54 mg/mL (197.74 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water Insoluble
Ethanol Insoluble
FAQ
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
  • Preheat media/saline to 37°C.
  • Mix rapidly (pipette/vortex) upon addition.
  • For complex mixes, always add the aqueous phase last.
  • Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).
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Reference

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Note: Technical data last updated: Sep 1, 2026.