# Retraction Note: Magnetically retrievable nanocatalyst Fe3O4@CPTMO@dithizone-Ni for the fabrication of 4H-benzo[h]chromenes under green medium

**Authors:** Sepideh Bibak, Ahmad Poursattar Marjani

PMC · DOI: 10.1038/s41598-025-02783-5 · 2025-05-20

## Full-text entities

- **Chemicals:** Ni (MESH:D009532), 4H-benzo[h]chromenes (-)

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Source: https://tomesphere.com/paper/PMC12092695