Helen Frankenthaler Foundation

Opioid receptor antagonist

Mu opioid receptor antagonist 4 | Opioid Receptor | 2773925-74-7

apigenin 7 o d glucopyranoside cas no 578 74 powder macro

Mu opioid receptor antagonist 4

Cat No.: V69948 Purity: ≥98%

Mu opioid receptor antagonist 4 (compound 31) is a potent and specific mu opioid receptor (MOR) antagonist (inhibitor) with EC50 of 1.07 nM and a Ki of 0.38 nM.

Chemical Information

CAS No.: 2773925-74-7

Product category: Opioid Receptor

This product is for research use only, not for human use. We do not sell to patients.

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Citations by Top Journals: Nature, Cell, Science, etc.

Top Publications Citing Invivochem Products

  • Nature, 2025, 643(8070):192-200.
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  • Nature, 2021, 597(7874):119-125.
  • Cell, 2020,183:1202-1218.e25.
  • Science Adv, 2022: 8, eabm9427.
  • Nat Neurosci, 2024, 27:1468-1474.
  • Science Adv, 2025, 11(33):eadr5199.
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