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D193

Sigma-Aldrich

DL-α-Difluoromethylornithine hydrochloride hydrate

solid, ≥97% (NMR)

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Synonym(s):
2-(Difluoromethyl)ornithine hydrochloride hydrate, DFMO hydrochloride hydrate, Eflornithine hydrochloride hydrate
Empirical Formula (Hill Notation):
C6H12F2N2O2 · xHCl · yH2O
CAS Number:
Molecular Weight:
182.17 (anhydrous free base basis)
MDL number:
UNSPSC Code:
12352200
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.

Biochem/physiol Actions

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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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K V Lisitskaia et al.
Prikladnaia biokhimiia i mikrobiologiia, 49(2), 124-128 (2013-06-26)
A new biotest system was developed based on highly proliferating human cell cultures (lines LNCaP and PC-3). With the help of this system, two known synthetic polyamines--alpha-difluoromethylornithine (DFMO) and methylglioxalbis(guanylhydrason) (MGBG)--as well as four new synthetic analogues difenyl containing amines
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)
Development of difluoromethylornithine (DFMO) as a chemoprevention agent
Meyskens FL and Gerner EW
Clinical Cancer Research, 5(5), 945-951 (1999)
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)
Kerstin Dörner et al.
Nucleic acids research, 50(5), 2872-2888 (2022-02-13)
Ribosome assembly is an essential process that is linked to human congenital diseases and tumorigenesis. While great progress has been made in deciphering mechanisms governing ribosome biogenesis in eukaryotes, an inventory of factors that support ribosome synthesis in human cells

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