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Dequalinium Chloride anti-tumor agent and PKC inhibitor

Catalog No.B2191
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Sample solution is provided at 25 µL, 10mM.

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Chemical structure

Dequalinium Chloride

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Chemical Properties

Cas No. 522-51-0 SDF Download SDF
Chemical Name 1-[10-(4-amino-2-methylquinolin-1-ium-1-yl)decyl]-2-methylquinolin-1-ium-4-amine;dichloride
Canonical SMILES CC1=[N+](C2=CC=CC=C2C(=C1)N)CCCCCCCCCC[N+]3=C(C=C(C4=CC=CC=C43)N)C.[Cl-].[Cl-]
Formula C30H40N4.2Cl M.Wt 527.57
Solubility <5.28mg/mL in DMSO Storage Store at -20°C
Shipping Condition Evaluation sample solution : ship with blue ice.All other available size: ship with RT , or blue ice upon request
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.


Dequalinium Chloride (DECA) is a PKC inhibitor with IC50 of 7-18 μM, and also a selective blocker of apamin-sensitive K+ channels with IC50 of 1.1 μM [1][3].
Protein kinase C (PKC) is a monomeric Ca2+- and phospholipid-dependent Ser/Thr protein kinases, it plays a critical role in growth factor-activated signaling and malignant transformation [1].
DECA is an anti-tumor agent and PKC inhibitor. It is selectively accumulated and retained within the mitochondria of carcinoma cells where it blocked mitochondrial enzymes which can then disrupt cellular energy production, eventually resulting in cell death [2]. Dequalinium is a potent inhibitor of apamin-sensitive K+ channels in hepatocytes and of nicotinic responses in skeletal muscle. Dequalinium blocked angiotensin II-evoked K+ loss with an IC50 value of 1.5 μM and also inhibited 125I - monoiodoapamin binding with Ki of 1.1 μM [3].
DECA, as a mitochondrial poison, is an agent with capable of potentiating the effects of tumor necrosis factor against ovarian cancer cell lines. DECA treatment can prolong animal survival in mice bearing the PA-1 intraperitoneal ovarian carcinoma xenograft. Single agent DECA increased animal survival by 37% whereas human TNF increased survival by 12% in those animals treated 3 days post tumor injection. DECA/TNF enhanced animal survival by 45% in treated animals [4].
[1]. Rotenberg SA, Sun XG. Photoinduced inactivation of protein kinase C by dequalinium identifies the RACK-1-binding domain as a recognition site. J Biol Chem, 1998, 273(4): 2390-2395.
[2]. Manetta A, Emma D, Gamboa G, et al. Failure to enhance the in vivo killing of human ovarian carcinoma by sequential treatment with dequalinium chloride and tumor necrosis factor. Gynecol Oncol, 1993, 50(1): 38-44.
[3]. Castle NA, Haylett DG, Morgan JM, et al. Dequalinium: a potent inhibitor of apamin-sensitive K+ channels in hepatocytes and of nicotinic responses in skeletal muscle. Eur J Pharmacol, 1993, 236(2): 201-207.
[4]. Manetta A, Emma D, Fuchtner C, et al. Effect of recombinant human tumor-necrosis-factor-alpha and dequalinium chloride on human ovarian-cancer cell-lines in-vitro. Int J Oncol, 1993, 3(1): 127-33.