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ChemicalBook >> CAS DataBase List >>Dibenzo[a,g]quinolizinium,5,6-dihydro-2,3,9,10-tetramethoxy-, hydroxide (9CI)

Dibenzo[a,g]quinolizinium,5,6-dihydro-2,3,9,10-tetramethoxy-, hydroxide (9CI)

CAS No.
131-04-4
Chemical Name:
Dibenzo[a,g]quinolizinium,5,6-dihydro-2,3,9,10-tetramethoxy-, hydroxide (9CI)
Synonyms
Palmatine hydroxide;Dibenzo[a,g]quinolizinium,5,6-dihydro-2,3,9,10-tetramethoxy-, hydroxide (9CI)
CBNumber:
CB93183259
Molecular Formula:
C21H22NO4.HO
Molecular Weight:
369.41102
MDL Number:
MOL File:
131-04-4.mol
Last updated:2025-04-18 09:53:12

Dibenzo[a,g]quinolizinium,5,6-dihydro-2,3,9,10-tetramethoxy-, hydroxide (9CI) Properties

storage temp. Store at -20°C
solubility DMSO : 15.62 mg/mL (42.28 mM; ultrasonic and warming and heat to 60°C)
form Solid
color Light yellow to yellow
FDA UNII 6771L5MN8S

Dibenzo[a,g]quinolizinium,5,6-dihydro-2,3,9,10-tetramethoxy-, hydroxide (9CI) Chemical Properties,Uses,Production

Uses

Palmatine hydroxide is an orally active and irreversible indoleamine 2,3-dioxygenase 1 (IDO-1) inhibitor with IC50s of 3 μM and 157μM against HEK 293-hIDO-1 and rhIDO-1, respectively. Palmatine hydroxide can also inhibit West Nile virus (WNV) NS2B-NS3 protease in an uncompetitive manner with an IC50 of 96 μM. Palmatine hydroxide shows anti-cancer, anti-oxidation, anti-inflammatory, neuroprotection, antibacterial, anti-viral activities[1][2][3][4][5].

Safety Profile

Experimental reproductive effects. When heated to decomposition it emits toxic fumes of NOx.

in vivo

Palmatine (50 or 100 mg/kg; p.o.; daily for 7 days) ameliorates DSS (dextran sulfate sodium)-induced colitis and prevents infiltration of inflammatory cells[1]. Palmatine (0-200 mg/kg; i.p.; once) attenuates D-galactosamine/Lipopolysaccharides (HY-D1056)-induced fulminant hepatic failure in mice[2]. Palmatine (0-1 mg/kg; i.p.; 10 days) shows memory-enhancing activity in mice[4]. Palmatine (33.75-135 mg/kg; p.o.; daily for 26 days) can effectively inhibit the growth of HCT-116 xenografts in mice[5].

Animal Model:DSS- induced Colitis BALB/c mice model (8-week-old)[1]
Dosage:50 or 100 mg/kg
Administration:Orally, daily, for 7 days
Result:Ameliorated DSS-induced colitis and prevented infiltration of inflammatory cells; remarkably extended the colon length; significantly suppressed the colonic MPO activity. Decreased the levels of colonic inflammatory cytokines (TNF-α, IFN-γ, IL-1β, IL-6, IL-4 and IL-10); Protected mucosal integrity by modulating TJs protein and apoptosis proteins; Restored DSS-induced decreases of TJ protein ZO-1, ZO-2 and claudin-1; Reduced Bax expression and enhanced Bcl-2 expression at the dose of 100?mg/kg, prevented epithelial apoptosis and improved intestinal integrity. Prevented DSS-induced changes of gut microbiota in colitis mice.
Animal Model:Male ICR mice (20–22 g), D-galactosamine/lipopolysaccharide (GalN/LPS)-induced fulminant hepatic failure model[2]
Dosage:25, 50, 100, or 200 mg/kg
Administration:Intraperitoneal injection, 1 h before the GalN/LPS treatment
Result:Attenuated the mortality and serum aminotransferase activities increased by GalN/LPS. Prevented the increase of serum TNF-α and augmented that of serum IL-10. Decreased the TNF-a mRNA expression and increased the IL-10 mRNA expression. Attenuated the apoptosis of hepatocytes.
Animal Model:Swiss young male albino mice, with Scopolamine (HY-N0296)- and diazepam-induced amnesia model[4]
Dosage:0.1, 0.5, 1 mg/kg
Administration:Intraperitoneal injection, 10 days
Result:Significantly improved learning and memory of mice at 0.5 and 1 mg/kg and did not show any significant effect on locomotor activity of the mice. Significantly reversed scopolamine- and diazepam-induced amnesia in mice. Significantly reduced brain acetylcholinesterase activity of mice.
Animal Model:BALB/c-nude mice, HCT-116 xenograft model[5]
Dosage:33.75, 67.5 and 135 mg/kg
Administration:Oral administration, once a day for 26 days
Result:The tumor volume and weight of the treatment group were significantly reduced.

IC 50

IDO-1: 3 μM (IC50, HEK 293-hIDO-1); IDO-1: 157 μM (IC50, rhIDO-1); WNV NS2B-NS3: 96 μM (IC50)

References

[1] Zhang XJ, et al. Palmatine ameliorated murine colitis by suppressing tryptophan metabolism and regulating gut microbiota.Pharmacol Res. 2018 Nov;137:34-46. DOI:10.1016/j.phrs.2018.09.010
[2] Lee WC, et al. Palmatine attenuates D-galactosamine/lipopolysaccharide-induced fulminant hepatic failure in mice. Food Chem Toxicol. 2010 Jan;48(1):222-8. DOI:10.1016/j.fct.2009.10.004
[3] Jia F, et al. Identification of palmatine as an inhibitor of West Nile virus. Arch Virol. 2010 Aug;155(8):1325-9. DOI:10.1007/s00705-010-0702-4
[4] Dhingra D, et al. Memory-enhancing activity of palmatine in mice using elevated plus maze and morris water maze. Adv Pharmacol Sci. 2012;2012:357368. DOI:10.1155/2012/357368
[5] Liu X, et al. Palmatine induces G2/M phase arrest and mitochondrial-associated pathway apoptosis in colon cancer cells by targeting AURKA. Biochem Pharmacol. 2020 May;175:113933. DOI:10.1016/j.bcp.2020.113933
[6] Long J, et al. Palmatine: A review of its pharmacology, toxicity and pharmacokinetics. Biochimie. 2019 Jul;162:176-184. DOI:10.1016/j.biochi.2019.04.008

Dibenzo[a,g]quinolizinium,5,6-dihydro-2,3,9,10-tetramethoxy-, hydroxide (9CI) Preparation Products And Raw materials

Dibenzo[a,g]quinolizinium,5,6-dihydro-2,3,9,10-tetramethoxy-, hydroxide (9CI) Suppliers

Global( 3)Suppliers
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TargetMol Chemicals Inc.
support@targetmol.com United States 38664 58
Shanghai Yifei Biotechnology Co. , Ltd. 021-65675885 18964387627 customer_service@efebio.com China 11973 58
TargetMol Chemicals Inc. 15002134094 marketing@targetmol.cn China 20561 58

View Lastest Price from Dibenzo[a,g]quinolizinium,5,6-dihydro-2,3,9,10-tetramethoxy-, hydroxide (9CI) manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Palmatine hydroxide pictures 2025-05-01 Palmatine hydroxide
131-04-4
US $40.00-30.00 / mg 10g TargetMol Chemicals Inc.
Dibenzo[a,g]quinolizinium,5,6-dihydro-2,3,9,10-tetramethoxy-, hydroxide (9CI) Palmatine hydroxide 131-04-4 C21H22NO4HO