CAS No. 1439399-58-2

Batch: Purity:99.05
Telaglenastat (CB-839) Chemical Structure
Chemical Structure
Check the Telaglenastat (CB-839) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name N-[6-[4-[5-[(2-pyridin-2-ylacetyl)amino]-1,3,4-thiadiazol-2-yl]butyl]pyridazin-3-yl]-2-[3-(trifluoromethoxy)phenyl]acetamide
CAS Number 1439399-58-2
Molecular Formula

 C26H24F3N7O3S

Molecular Weight (MW) 571.57
SMILES C1=CC=NC(=C1)CC(=O)NC2=NN=C(S2)CCCCC3=NN=C(C=C3)NC(=O)CC4=CC(=CC=C4)OC(F)(F)F
InChIKey PRAAPINBUWJLGA-UHFFFAOYSA-N

Ordering Information

Biological Activity

Telaglenastat (CB-839) is a potent, selective, and orally bioavailable glutaminase inhibitor that targets recombinant human GAC with an IC50 of. It blocks the conversion of glutamine to glutamate within the glutamine metabolism pathway, disrupting downstream tricarboxylic acid cycle intermediate replenishment and energy production. This metabolic inhibition leads to antiproliferative effects, induction of autophagy, and robust antitumor activity in preclinical cancer models. [1]

How to Prepare Stock Solution?

Concentration Volume Mass
1 mg 5 mg 10 mg
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 100 mg/mL (174.95 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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Note: Technical data last updated: Sep 1, 2026.