CAS No. 2893809-51-1

Batch: Purity:99.72
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BBO-8520 Chemical Structure
Chemical Structure
Check the BBO-8520 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 2-amino-4-[4-[(2S,5R)-2,5-dimethyl-4-prop-2-enoylpiperazin-1-yl]-8-fluoro-2-[[(2R,8S)-2-fluoro-1,2,3,5,6,7-hexahydropyrrolizin-8-yl]methoxy]-6-(trifluoromethyl)quinazolin-7-yl]-7-fluoro-1-benzothiophene-3-carbonitrile
CAS Number 2893809-51-1
Molecular Formula

C35H33F6N7O2S
Molecular Weight (MW) 729.74
SMILES FC1=[C@](C(C(F)(F)F)=CC2=C(N=C(N=C21)OC[C@@]34CCCN3C[C@@H](C4)F)N5[C@H](CN([C@@H](C5)C)C(C=C)=O)C)[C@]6=CC=C(F)C7=C6C(C#N)=C(N)S7
InChIKey RIVFEDYNLHJKEZ-VHJOERAISA-N

Ordering Information

Biological Activity

BBO-8520 is an orally bioavailable, covalent small-molecule inhibitor that selectively targets both GTP-bound (ON) and GDP-bound (OFF) conformations of KRAS G12C. By binding the active GTP-bound form in the Switch-II/Helix3 pocket, it prevents RAS-RAF1 interaction and blocks effector signaling. Consequently, BBO-8520 suppresses downstream RAS/MAPK signaling to inhibit cellular proliferation and promote transition to the inactive state. [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 100 mg/mL (137.03 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 100 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.