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Diclofenac ethyl ester Sale

目录号 : GC43446

An esterified form of diclofenac

Diclofenac ethyl ester Chemical Structure

Cas No.:15307-77-4

规格 价格 库存 购买数量
25mg
¥1,113.00
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50mg
¥2,125.00
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100mg
¥4,009.00
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250mg
¥8,907.00
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Sample solution is provided at 25 µL, 10mM.

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Chemical Properties

Cas No. 15307-77-4 SDF
Canonical SMILES ClC1=C(N([H])C2=C(CC(OCC)=O)C=CC=C2)C(Cl)=CC=C1
分子式 C16H15Cl2NO2 分子量 324.2
溶解度 DMF: 10mg/mL,DMF:PBS (pH 7.2) (1:3): 0.25mg/mL,DMSO: 5mg/mL 储存条件 Store at -20°C
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1 mg 5 mg 10 mg
1 mM 3.0845 mL 15.4226 mL 30.8452 mL
5 mM 0.6169 mL 3.0845 mL 6.169 mL
10 mM 0.3085 mL 1.5423 mL 3.0845 mL
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Research Update

Delivery and Biodistribution of Traceable Polymeric Micellar Diclofenac in the Rat

J Pharm Sci 2019 Aug;108(8):2698-2707.PMID:30905704DOI:10.1016/j.xphs.2019.03.016.

The nonsteroidal anti-inflammatory drugs elevate cardiovascular risk, perhaps, due to their accumulation in the heart and kidneys. We designed nanodelivery systems for cardiotoxic diclofenac to reduce its presence in these organs. Diclofenac ethyl ester (DFEE) was encapsulated in traceable micelles based on poly(ethylene oxide)-b-poly(ε-caprolactone) (DFEE-PCL-TM) or poly(ethylene oxide)-b-poly(α-benzyl carboxylate-ε-caprolactone) (DFEE-PBCL-TM). Diclofenac pharmacokinetics and tissue distribution were studied after intravenous (iv) and intraperitoneal administration of the nanoformulations and compared with those after iv doses of free diclofenac (n = 3-6/group). The average diameters for DFEE-PBCL-TM and DFEE-PCL-TM were 37.2 ± 0.06 and 45.1 ± 0.06 nm, respectively. Drug concentration dropped below the assay sensitivity after free drug administration in 6 h, but persisted for 24 h following DFEE-PBCL-TM (2.3 ± 1.4 μg/mL) and DFEE-PCL-TM (1.9 ± 0.6 μg/mL) iv administration. The diclofenac heart:blood and kidney:blood ratios were 5- to 12-fold lower with the nanoformulations than with free diclofenac. Near-infrared fluorescence measurements in tissues suggested exposure patterns to nanocarriers parallel with those achieved for delivered diclofenac by nanoformulations. Administration of DFEE-PCL-TM by iv or intraperitoneal injection, resulted in comparable pharmacokinetics and 6 h postdose near-infrared fluorescence in the heart, kidneys, liver, and spleen. When compared to each other, DFEE-PBCL-TM showed significantly lower diclofenac levels in the heart compared to DFEE-PCL-TM (0.3 ± 0.03 vs. 0.5 ± 0.1 μg/g). Developed nanoformulations of diclofenac prolonged diclofenac circulation and reduced its presence in the heart and kidneys, strongly suggesting cardiac-safe delivery vehicles for diclofenac.

Reduced Heart Exposure of Diclofenac by Its Polymeric Micellar Formulation Normalizes CYP-Mediated Metabolism of Arachidonic Acid Imbalance in An Adjuvant Arthritis Rat Model: Implications in Reduced Cardiovascular Side Effects of Diclofenac by Nanodrug Delivery

Mol Pharm 2020 Apr 6;17(4):1377-1386.PMID:32023064DOI:10.1021/acs.molpharmaceut.0c00069.

In this study, we tested whether the extent of drug presence in the heart contributes to the elevated cardiovascular risk of nonsteroidal anti-inflammatory drugs (NSAIDs). A fluorescently tagged nanoformulation of an NSAID with high cardiovascular (CV) risk (diclofenac) was developed as Diclofenac ethyl ester (DFEE) encapsulated in traceable (cyanine-5.5-labeled) polymeric micelles (DFEE-TM) based on methoxypoly(ethylene oxide)-block-poly(ε-caprolactone)(PEO-b-PCL) (MW, 5000:3500 g/mol). Diclofenac pharmacokinetics and tissue distribution, as well as ex vivo near-infrared images of organs and whole bodies, were compared between healthy rats and rats with adjuvant arthritis (AA) following the administration of a single intravenous (iv) dose of DFEE-TM. Moreover, the biodistribution and antiarthritic activity of DFEE-TM were compared with those of free diclofenac (once-daily intraperitoneal, ip, 10 mg/kg for 7 days). The concentration ratios of cytochrome-P450-mediated cardiotoxic (20-hydroxyeicosatetraenoic acid) over cardioprotective (epoxyeicosatrienoic acids) metabolites of arachidonic acid (ArA) in the heart, kidneys, and plasma were measured as markers of cardiotoxicity. The nanocarrier was found in the joints of AA, but not in those of healthy rats. Both free diclofenac and DFEE-TM comparably controlled AA. Diclofenac delivery via PEO-b-PCL micelles reduced the accumulation of diclofenac in the heart of AA rats. Despite similar antiarthritic activity, the polymeric micellar formulation showed a reduction in the ratio of cardiotoxic-over-cardioprotective eicosanoids of ArA in the heart and plasma of AA rats. The results showed the positive effect of diclofenac prodrug nanodelivery in changing the normal biodistribution of diclofenac away from the heart, leading to lowered diclofenac-induced biomarkers of cardiotoxicity in the heart and plasma of AA rats.