D193

Sigma-Aldrich

DL-α-Difluoromethylornithine hydrochloride hydrate

solid, ≥97% (NMR)

Synonym(s):
2-(Difluoromethyl)ornithine hydrochloride hydrate, Eflornithine hydrochloride hydrate, DFMO hydrochloride hydrate
Empirical Formula (Hill Notation):
C6H12F2N2O2 · xHCl · yH2O
Molecular Weight:
182.17 (anhydrous free base basis)
MDL number:
PubChem Substance ID:
NACRES:
NA.77

Quality Level

assay

≥97% (NMR)

form

solid

color

white

solubility

DMSO: >10 mg/mL
H2O: >10 mg/mL

SMILES string

O.Cl.NCCCC(N)(C(F)F)C(O)=O

InChI

1S/C6H12F2N2O2.ClH.H2O/c7-4(8)6(10,5(11)12)2-1-3-9;;/h4H,1-3,9-10H2,(H,11,12);1H;1H2

InChI key

FJPAMFNRCFEGSD-UHFFFAOYSA-N

Gene Information

human ... ODC1(4953)

General description

Difluoromethylornithine is a fluorinated ornithine analog, which acts as a rate-limiting enzyme of polyamine biosynthesis. It is used to treat female facial hirsutism and human African trypanosomiasis. Difluoromethylornithine functions as a chemopreventive and chemotherapeutic agent against neuroblastoma and colorectal cancer. It exhibits cytostatic effects on mammalian cells and tissues.

Application

DL-α-Difluoromethylornithine hydrochloride hydrate has been used to reduce the effects of arginine on cell proliferation. It has also been used to investigate the effect of bisphenol A (BPA) on the migration of an established ovine trophectoderm (oTr1) cell line.

Packaging

25, 100 mg in poly bottle

Biochem/physiol Actions

Difluoromethylornithine (Eflornithine) inhibits polyamine biosynthesis by the selective, irreversible inhibition of ornithine decarboxylase (ODC). A chemoprotective agent that blocks angiogenesis.

Features and Benefits

This compound is also offered as part of Sigma′s Library of Pharmacologically Active Compounds (LOPAC®1280), a biologically annotated collection of high-quality, ready-to-screen compounds. Click here to learn more.

Legal Information

LOPAC is a registered trademark of Sigma-Aldrich Co. LLC

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

NONH for all modes of transport

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Preeti et al.
PloS one, 8(1), e53397-e53397 (2013-01-18)
Polyamine biosynthetic pathway is a validated therapeutic target for large number of infectious diseases including cancer, giardiasis and African sleeping sickness, etc. α-Difluoromethylornithine (DFMO), a potent drug used for the treatment of African sleeping sickness is an irreversible inhibitor of...
Joanne M Jeter et al.
Cancer prevention research (Philadelphia, Pa.), 5(12), 1341-1344 (2012-12-12)
In this issue (beginning on page 1368), Kreul and colleagues report a retrospective review of long-term efficacy and toxicity for subjects participating in a phase III study of difluoromethylornithine (DFMO) for prevention of nonmelanoma skin cancer (NMSC). They conclude that...
Functional roles of arginine during the peri-implantation period of pregnancy. III. Arginine stimulates proliferation and interferon tau production by ovine trophectoderm cells via nitric oxide and polyamine-TSC2-MTOR signaling pathways
Wang X, et al.
Biology of Reproduction, 92(3), 75-71 (2015)
Development of difluoromethylornithine (DFMO) as a chemoprevention agent
Meyskens FL and Gerner EW
Clinical Cancer Research, 5(5), 945-951 (1999)
Alpha-difluoromethylornithine, an irreversible inhibitor of polyamine biosynthesis, as a therapeutic strategy against hyperproliferative and infectious diseases
LoGiudice N, et al.
Medical sciences (Basel, Switzerland), 6(1), 12-12 (2018)
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