CAS No. 496791-37-8

Batch: Purity:99.68
AR-C155858 Chemical Structure
Chemical Structure
Check the AR-C155858 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 6-[(3,5-dimethyl-1H-pyrazol-4-yl)methyl]-5-[(4S)-4-hydroxy-1,2-oxazolidine-2-carbonyl]-3-methyl-1-(2-methylpropyl)thieno[2,3-d]pyrimidine-2,4-dione
CAS Number 496791-37-8
Molecular Formula

C21H27N5O5S

Molecular Weight (MW) 461.54
SMILES CC1=C(C(=NN1)C)CC2=C(C3=C(S2)N(C(=O)N(C3=O)C)CC(C)C)C(=O)N4CC(CO4)O
InChIKey ISIVOJWVBJIOFM-ZDUSSCGKSA-N

Ordering Information

Biological Activity

AR-C155858 is a selective inhibitor of monocarboxylate transporter MCT1 (Ki 2.3 nM) and MCT2 (Ki 10 nM). By blocking MCT1 and MCT2, it prevents lactate transport across cell membranes, disrupting intracellular pH homeostasis and glycolytic flux in cancer cells. This inhibition impairs cellular energy metabolism, reduces lactate efflux, and suppresses tumor cell proliferation and survival. [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 92 mg/mL (199.33 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 92 mg/mL
Water 8 mg/mL
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).
Note: Technical data last updated: Sep 1, 2026.