Date published: 2026-4-30

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RO1138452 (CAS 221529-58-4)

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Alternate Names:
4, 5-dihydro-N-[4-[[4-(1-methylethoxy)phenyl]methyl]phenyl]-1H-imadazol-2-amine
Application:
RO1138452 is an IP receptor antagonist
CAS Number:
221529-58-4
Molecular Weight:
309.4
Molecular Formula:
C19H23N3O
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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RO1138452 is one of the more potent high-affinity ligands and functional antagonists for the human IP (prostacyclin) receptor (1). It antagonizes the carbaprostacyclin-induced activation of human neuroblastoma adenylate cyclase, blocking the accumulation of cyclic AMP in a dose-dependent manner. It also inhibits the binding of tritiated iloprost to rodent neuroblastoma cells with a Ki of approximately 1.5 nM. At levels between 2-20 mg/kg in rats, RO1138452 shows significant analgesic activity in standard antinociceptive assays (1).


RO1138452 (CAS 221529-58-4) References

1 Clark, R.D., Jahangir, A., Severance, D., et al. Discovery and SAR development of 2-(phenylamino) imidazolines as prostacyclin receptor antagonists. Bioorg Medicinal Chem Letters 14 1053-1056 (2004).

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

RO1138452, 1 mg

sc-222261
1 mg
$106.00

RO1138452, 5 mg

sc-222261A
5 mg
$480.00