Ligand id: 5176

Name: eflornithine

Structure and Physico-chemical Properties

2D Structure
Click here for structure editor
Calculated Physico-chemical Properties
Hydrogen bond acceptors 4
Hydrogen bond donors 3
Rotatable bonds 5
Topological polar surface area 89.34
Molecular weight 182.09
XLogP -2.71
No. Lipinski's rules broken 0

Molecular properties generated using the CDK

Compound class Synthetic organic
Approved drug? Yes (FDA (2000), EMA (2001))
WHO Essential Medicine WHO Model List of Essential Medicines (21st List, 2019). Access PDF version.
2,5-diamino-2-(difluoromethyl)pentanoic acid
International Nonproprietary Names
INN number INN
5551 eflornithine
2-(difluoromethyl)ornithine (DMFO) | difluoromethylornithine | Ornidyl® | Vaniqa®
Eflornithine is an irreversible ornithine decarboxylase inhibitor [1,4] and is a partial inhibitor of arginase enzymes [6]. Marketed formulations may contain eflornithine hydrochloride (PubChem CID 57004).

Eflornithine has recently been reported to provide neuroprotective effects in a mouse model of Alzheimer's disease (AD) [3]. The authors identify microglial-induced arginine depletion as a causative factor in AD pathophysiology in their model, focussing on inhibition of arginine catabolising enzymes as a novel mechanism by which to halt the neurodegeneration observed in AD. These findings suggest that eflornithine could be used as a starting point for medicinal chemists to identify novel compounds with anti-arginase activity in humans.
Database Links
CAS Registry No. 70052-12-9
GtoPdb PubChem SID 178101866
PubChem CID 3009
Search Google for chemical match using the InChIKey VLCYCQAOQCDTCN-UHFFFAOYSA-N
Search Google for chemicals with the same backbone VLCYCQAOQCDTCN
Search PubMed clinical trials eflornithine
Search PubMed titles eflornithine
Search PubMed titles/abstracts eflornithine
Search UniChem for chemical match using the InChIKey VLCYCQAOQCDTCN-UHFFFAOYSA-N
Search UniChem for chemicals with the same backbone VLCYCQAOQCDTCN
Wikipedia Eflornithine