Date published: 2026-4-30

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Fenbutrazate (CAS 4378-36-3)

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Alternate Names:
2-Phenylbutyric Acid 2-(3-Methyl-2-phenylmorpholino)ethyl Ester
CAS Number:
4378-36-3
Molecular Weight:
367.48
Molecular Formula:
C23H29NO3
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Fenbutrazate is an anti-inflammatory, anti-arthritic, and appetite suppressing agent. Derived from phenmetrazine, it shares similarities with phendimetrazine and may function as a prodrug. In vitro studies have demonstrated its ability to inhibit pro-inflammatory cytokines, including TNF-α and IL-1β. Fenbutrazate specifically targets the pathways associated with joint inflammation, while also inhibiting the enzyme cyclooxygenase-2 (COX-2) responsible for prostaglandin production, a key factor in inflammation.


Fenbutrazate (CAS 4378-36-3) References

  1. Pharmacophore modeling, virtual screening, and in vitro testing reveal haloperidol, eprazinone, and fenbutrazate as neurokinin receptors ligands.  |  Krautscheid, Y., et al. 2014. J Chem Inf Model. 54: 1747-57. PMID: 24849814
  2. Ultra‐high performance supercritical fluid chromatography coupled to tandem mass spectrometry for antidoping analyses: Assessment of the inter‐laboratory reproducibility with urine samples.  |  Losacco, G. L., Rentsch, M., Plachká, K., Monteau, F., Bichon, E., Bizec, B. L.,.. & Guillarme, D. (2021). Analytical Science Advances,. 2(1-2),: 68-75.

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Fenbutrazate, 10 mg

sc-497830
10 mg
$413.00