CAS No. 148741-30-4

Batch: Purity:99.9
Tyrphostin AG 879 Chemical Structure
Chemical Structure
Check the Tyrphostin AG 879 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name (E)-2-cyano-3-(3,5-ditert-butyl-4-hydroxyphenyl)prop-2-enethioamide
CAS Number 148741-30-4
Molecular Formula

C18H24N2OS

Molecular Weight (MW) 316.46
SMILES CC(C)(C)C1=CC(=CC(=C1O)C(C)(C)C)C=C(C#N)C(=S)N
InChIKey XRZYELWZLNAXGE-KPKJPENVSA-N

Ordering Information

Biological Activity

Tyrphostin AG 879 is a potent tyrosine kinase inhibitor targeting HER2/ErbB2 with selective activity over PDGFR and EGFR. By suppressing HER2 receptor autophosphorylation, AG 879 effectively disrupts downstream intracellular signaling cascades, including the MAPK and AKT pathways. Consequently, inhibition of this receptor tyrosine kinase leads to reduced cell proliferation, G1 cell cycle arrest, and the induction of apoptosis in HER2-overexpressing cancer cells. [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 36 mg/mL (113.75 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 3 mg/mL
Water 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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Note: Technical data last updated: Sep 1, 2026.