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SML2205

Sigma-Aldrich

Octyl-α-KG

≥95% (HPLC)

Synonym(s):

α-KG octyl ester, α-Ketoglutarate octyl ester, 1-Octyl-2-Oxo-pentanedioate, 1-Octyl-2-ketoglutarate, 2-Oxo-pentanedioic acid, 1-octyl ester, Octyl-α-ketoglutarate, Octyl-2KG

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About This Item

Empirical Formula (Hill Notation):
C13H22O5
CAS Number:
Molecular Weight:
258.31
UNSPSC Code:
12352200
NACRES:
NA.77

assay

≥95% (HPLC)

form

oil

storage condition

desiccated
under inert gas

color

colorless to yellow

storage temp.

−20°C

SMILES string

CCCCCCCCOC(C(CCC(O)=O)=O)=O

Application

Octyl-α-KG has been used to study its effects on the cell viability and to replenish α-KG levels in human glioblastoma cells.

Biochem/physiol Actions

Octyl-α-KG (Octyl-2KG) is a membrane-permeant precursor form of α-ketoglutarate (α-KG or 2KG) whose downregulation is often seen with concomitant upregulated D-2-hydroxyglutarate (D-2HG) in tumor cells due to mutations in the NADP+-dependent isocitrate dehydrogenase genes IDH1 and IDH2, leading to reduced activity of multiple α-KG-dependent dioxygenases. Cellular α-KG delivery by Octyl-α-KG treatment (1-5 mM) is shown to restore cellular demethylase activity following octyl-2-HG (1-50 mM) treatment or IDH1(R132H) mutant expression. Octyl-α-KG also effectively reactivates α-KG-dependent dioxygenases prolyl hydroxylase (PHD) activity in cells with a dysfunctional tricarboxylic acid (TCA) cycle due to succinate dehydrogenase (SDH) and/or fumarate hydratase (FH) deficiency.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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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Shimin Zhao et al.
Science (New York, N.Y.), 324(5924), 261-265 (2009-04-11)
Heterozygous mutations in the gene encoding isocitrate dehydrogenase-1 (IDH1) occur in certain human brain tumors, but their mechanistic role in tumor development is unknown. We have shown that tumor-derived IDH1 mutations impair the enzyme's affinity for its substrate and dominantly
Elaine D MacKenzie et al.
Molecular and cellular biology, 27(9), 3282-3289 (2007-02-28)
Succinate dehydrogenase (SDH) and fumarate hydratase (FH) are components of the tricarboxylic acid (TCA) cycle and tumor suppressors. Loss of SDH or FH induces pseudohypoxia, a major tumor-supporting event, which is the activation of hypoxia-inducible factor (HIF) under normoxia. In
Jing-Yi Chen et al.
Scientific reports, 6, 32428-32428 (2016-09-01)
Mutations of isocitrate dehydrogenase 1 (IDH1) and IDH2 in acute myeloid leukemia (AML) cells produce the oncometabolite R-2-hydroxyglutarate (R-2HG) to induce epigenetic alteration and block hematopoietic differentiation. However, the effect of R-2HG released by IDH-mutated AML cells on the bone
Parker L Sulkowski et al.
Science translational medicine, 9(375) (2017-02-06)
2-Hydroxyglutarate (2HG) exists as two enantiomers, (R)-2HG and (S)-2HG, and both are implicated in tumor progression via their inhibitory effects on α-ketoglutarate (αKG)-dependent dioxygenases. The former is an oncometabolite that is induced by the neomorphic activity conferred by isocitrate dehydrogenase
L Zeng et al.
Oncogene, 34(36), 4758-4766 (2014-12-23)
Cancer cells gain a growth advantage through the so-called Warburg effect by shifting glucose metabolism from oxidative phosphorylation to aerobic glycolysis. Hypoxia-inducible factor 1 (HIF-1) has been suggested to function in metabolic reprogramming; however, the underlying mechanism has not been

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