Diclofenac diethylammonium salt

Names

[ Name ]:
Diclofenac diethylammonium salt

[Synonym ]:
N-ethylethanaminium {2-[(2,6-dichlorophenyl)amino]phenyl}acetate
Diclofenac diethylamine
n-ethylethanamine 2-[(2,6-dichlorophenyl)amino]benzeneacetate
UNII-6TGQ35Z71K
2-[(2,6-dichlorophenyl)amino]-benzeneacetic acid compd. with n-ethylethanamine (1:1)
2-[(2,6-dichlorophenyl)amino]-benzeneacetic acid compd. with n-ethylethanamine
Diclofenac (diethylamine)
MFCD01862249
Voltarol
{2-[(2,6-Dichlorophenyl)amino]phenyl}acetic acid - N-ethylethanamine (1:1)
Benzeneacetic acid, 2-[(2,6-dichlorophenyl)amino]-, compd. with N-ethylethanamine (1:1)
2-[2-(2,6-dichloroanilino)phenyl]acetic acid
Diclofenac diethylammonium salt

Biological Activity

[Description]:

Diclofenac diethylamine is a potent and nonselective anti-inflammatory agent, acts as a COX inhibitor, with IC50s of 4 nM, 1.3 nM for human COX-1 and COX-2 in CHO cells, and 5.1, 0.84 μM for ovine COX-1 and COX-2, respectively.

[Related Catalog]:

Research Areas >> Inflammation/Immunology

[Target]

Human COX-2:1.3 nM (IC50, in CHO cells)

Human COX-1:4 nM (IC50, in CHO cells)

Ovine COX-2:0.84 μM (IC50)

Ovine COX-1:5.1 μM (IC50)

[In Vitro]

Diclofenac diethylamine is a potent COX inhibitor, with IC50s of 4 nM and 1.3 nM for human COX-1 and COX-2 in the CHO cells, respectively. Diclofenac effectively blocks COX-1 mediated prostanoid production from U937 cell microsomes, with an IC50 of 7 ± 3 nM[1]. Diclofenac sodium exihibits inhibition on COX-1 and COX-2 enzyme with IC50s of 5.1 and 0.84 μM, respectively[2].

[In Vivo]

Diclofenac (3 mg/kg, b.i.d., for 5 days) significantly increases faecal 51Cr excretion in rats, and such effect is also observed in squirrel monkeys after administrated of 1 mg/kg twice daily for 4 days[1]. Diclofenac (10 mg/kg) shows anti-inflammatory activity in mice[2]. Diclofenac (10 mg/kg) decreases oxidized low-densitylipoprotein (Ox-LDL), but shows no effects on the kinetics parameters of catalase and glutathione peroxidase via intramuscularly injection into rats[3].

[Animal admin]

Rats[1] Male Sprague-Dawley rats (150 ± 200 g) are dosed orally with Diclofenac either once (acute dosing) or twice daily for 5 days (chronic dosing). A plasma sample is obtained 1 h after the morning dose on day 4 for measurement of Diclofenac concentration. Immediately after the administration of the last dose on day 5, the rats are injected via a tail vein with 0.5 mL of 51Cr-labelled red blood cells from a donor rat after incubation with sodium 51chromate. The rats are placed individually in metabolism cages with food and water ad libitum. Faeces are collected for a 48 h period and 51Cr faecal excretion is calculated as a % of total injected dose (20 mCi per animal)[1]. Squirrel monkeys[1] Squirrel monkeys (Saimiri sciureus; 0.8 ± 1.4 kg) are dosed orally with Diclofenac twice daily for 1 ± 5 days. One hour after administration of the last dose, 51CrCl3 in sterile saline (1 mL/kg, 4 ± 5 mCi per animal) is injected via a saphenous vein and plasma samples are obtained for measurement of Diclofenac concentration. The monkeys are then housed individually in metabolism cages. Faeces are collected for a 24 h period and 51Cr faecal excretion is calculated as a % of total injected dose[1].

[References]

[1]. Riendeau D, et al. Biochemical and pharmacological profile of a tetrasubstituted furanone as a highly selective COX-2 inhibitor. Br J Pharmacol. 1997 May;121(1):105-17.

[2]. Labib MB, et al. Design, synthesis of novel isoindoline hybrids as COX-2 inhibitors: Anti-inflammatory, analgesic activities and docking study. Bioorg Chem. 2018 Oct;80:70-80.

[3]. Curcelli EC, et al. Beneficial effects of diclofenac therapy on serum lipids, oxidized low-density lipoprotein and antioxidant defenses in rats. Life Sci. 2008 Apr 9;82(15-16):892-8.

[Related Small Molecules]

Chemical & Physical Properties

[ Boiling Point ]:
412ºC at 760 mmHg

[ Melting Point ]:
145-148ºC

[ Molecular Formula ]:
C₁₈H₂₂Cl₂N₂O₂

[ Molecular Weight ]:
369.285

[ Flash Point ]:
203ºC

[ Exact Mass ]:
368.105835

[ PSA ]:
61.36000

[ LogP ]:
5.44380

Safety Information

[ HS Code ]:
2942000000

Customs

[ HS Code ]: 2942000000