CAS No. 2497585-50-7

Batch: Purity:97.45
SD-436 Chemical Structure
Chemical Structure
Check the SD-436 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name [[2-[[(5S,8S,10aR)-8-[[(2S)-5-amino-1-[[(2S)-3-(3,4-difluorophenyl)-1-[4-[4-[2-(2,6-dioxopiperidin-3-yl)-1-oxo-3H-isoindol-4-yl]but-3-ynyl]piperidin-1-yl]-1-oxopropan-2-yl]amino]-1,5-dioxopentan-2-yl]carbamoyl]-3-methoxycarbonyl-6-oxo-1,2,4,5,8,9,10,10a-octahydropyrrolo[1,2-a][1,5]diazocin-5-yl]carbamoyl]-1-benzothiophen-5-yl]-difluoromethyl]phosphonic acid
CAS Number 2497585-50-7
Molecular Formula

C58H62F4N9O14PS

Molecular Weight (MW) 1248.20
InChIKey FLMMCKAIYLDKIN-PBKIRHPCSA-N

Ordering Information

Biological Activity

SD-436 is a potent and selective proteolysis targeting chimera (PROTAC) degrader of signal transducer and activator of transcription 3 (STAT3). Targeted degradation of STAT3 disrupts downstream STAT3 signaling pathways, suppressing oncogenic gene expression and cell proliferation. Consequently, targeted STAT3 depletion exerts strong antiproliferative effects and induces marked tumor regression in leukemia and lymphoma xenograft models.

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 (80.11 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 5 mg/mL
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).
Note: Technical data last updated: Sep 1, 2026.