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analytical standard, Moligand™, ≥97% Analytical standard,Moligand™ for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Cited in 16 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Palmatine 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 can also inhibit West Nile virus (WNV) NS2B-NS3 protease in an uncompetitive manner with an IC50 of 96 μM. Palmatine shows anti-cancer, anti-oxidation, anti-inflammatory, neuroprotection, antibacterial, anti-viral activities
| Canonical Smiles | COC1=C(C2=C[N+]3=C(C=C2C=C1)C4=CC(=C(C=C4CC3)OC)OC)OC |
|---|---|
| IUPAC Name | 2,3,9,10-tetramethoxy-5,6-dihydroisoquinolino[2,1-b]isoquinolin-7-ium |
| InChIKey | QUCQEUCGKKTEBI-UHFFFAOYSA-N |
| INCHI | 1S/C21H22NO4/c1-23-18-6-5-13-9-17-15-11-20(25-3)19(24-2)10-14(15)7-8-22(17)12-16(13)21(18)26-4/h5-6,9-12H,7-8H2,1-4H3/q+1 |
| Isomeric SMILES | COC1=C(C2=C[N+]3=C(C=C2C=C1)C4=CC(=C(C=C4CC3)OC)OC)OC |
| Molecular Weight | 352.4 |
| Reaxy-Rn | 1555498 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1555498&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
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View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Alkaloids and derivatives |
| Class | Protoberberine alkaloids and derivatives |
| Subclass | Not available |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Protoberberine alkaloids and derivatives |
| Alternative Parents | Isoquinolines and derivatives Anisoles Alkyl aryl ethers Pyridinium derivatives Heteroaromatic compounds Azacyclic compounds Organopnictogen compounds Organonitrogen compounds Hydrocarbon derivatives Organic cations |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | Protoberberine skeleton - Isoquinoline - Anisole - Alkyl aryl ether - Pyridine - Pyridinium - Benzenoid - Heteroaromatic compound - Ether - Organoheterocyclic compound - Azacycle - Organic oxygen compound - Organic nitrogen compound - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Organopnictogen compound - Organic cation - Aromatic heteropolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as protoberberine alkaloids and derivatives. These are alkaloids with a structure based on a protoberberine moiety, which consists of a 5,6-dihydrodibenzene moiety fused to a quinolizinium and forming 5,6-Dihydrodibenzo(a,g)quinolizinium skeleton. |
| External Descriptors | a small molecule |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
| Certificate of Analysis | Mar 10, 2026 | P111383 | |
| Certificate of Analysis | Mar 10, 2026 | P111383 | |
| Certificate of Analysis | Sep 16, 2025 | P111383 | |
| Certificate of Analysis | Apr 28, 2025 | P111383 | |
| Certificate of Analysis | Apr 28, 2025 | P111383 | |
| Certificate of Analysis | Apr 28, 2025 | P111383 | |
| Certificate of Analysis | Apr 28, 2025 | P111383 | |
| Certificate of Analysis | Jul 16, 2024 | P111383 | |
| Certificate of Analysis | May 08, 2023 | P111383 |
| Sensitivity | Light sensitive |
|---|---|
| Molecular Weight | 352.400 g/mol |
| XLogP3 | 3.700 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 4 |
| Exact Mass | 352.155 Da |
| Monoisotopic Mass | 352.155 Da |
| Topological Polar Surface Area | 40.800 Ų |
| Heavy Atom Count | 26 |
| Formal Charge | 1 |
| Complexity | 475.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |
| 1. Chuanyi Gu, Chunru Wang, Wenjie Ma, Yunli Gao, Junyao Li, Qing Jin, Xiaochen Wu. (2023) Drug-Loaded Konjac Glucomannan/Metal–Organic Framework Composite Hydrogels as Antibacterial and Anti-Inflammatory Cell Scaffolds. ACS Applied Materials & Interfaces, [PMID:37632730] [10.1021/acsami.3c06996] |
| 2. Ya-qian Wang, Qin-ying Li, Ming Jiang, Xin Yang, XiaoWei Wu, Xu Yu, Li Xu. (2022) A palmatine-based fluorescent sensor for sensitive fluorometric and smartphone-assisted on-site fluorescent colorimetric detection of water in organic solvents. MICROCHEMICAL JOURNAL, [PMID:] [10.1016/j.microc.2022.107598] |
| 3. Xinchi Feng, Kun Wang, Shijie Cao, Liqin Ding, Feng Qiu. (2021) Pharmacokinetics of Five Alkaloids and their Metabolites in Normal and Diabetic Rats after Oral Administration of Rhizoma coptidis. PLANTA MEDICA, 88 (11): (921-932). [PMID:34111890] [10.1055/a-1506-1627] |
| 4. Hanzhi Zhang, Chunli Lou, Jing Li, Jingwu Kang. (2020) A gold foil covered fused silica capillary tip as a sheathless interface for coupling capillary electrophoresis-mass spectrometry. JOURNAL OF CHROMATOGRAPHY A, [PMID:32540065] [10.1016/j.chroma.2020.461215] |
| 5. Yifan Fei, Chenxiao Yan, Yali Yu, Longlong Gao, Ting Ye, Qingqing Zhang, Heng Gao, Xiaoshun Zhou, Yong Shao. (2019) Fluorescently probing site-specific and self-catalyzed DNA depurination. ANALYST, 144 (19): (5842-5847). [PMID:31482933] [10.1039/C9AN01412H] |
| 6. Jinchang Wang, Yuanhua Lin, Zhipeng Sun, Xi Luo, Wanying Liu, Xuefeng Deng. (2019) Corydalis yanhusuo extract as a green inhibitor for J55 steel in 3.5%NaCl solution saturated with CO2. Green Chemistry Letters and Reviews, [PMID:] [10.1080/17518253.2019.1642961] |
| 7. Wei Zhou, Chenlu Wang, Xuemei Wang, Zilin Chen. (2018) Etched poly(ether ether ketone) jacket stir bar with detachable dumbbell-shaped structure for stir bar sorptive extraction. JOURNAL OF CHROMATOGRAPHY A, [PMID:29680741] [10.1016/j.chroma.2018.04.022] |
| 8. Wang Chenlu, Zhou Wei, Liao Xiaoyan, Zhang Wenpeng, Chen Zilin. (2017) An etched polyether ether ketone tube covered with immobilized graphene oxide for online solid phase microextraction of quaternary alkaloids prior to their quantitation by HPLC-MS/MS. MICROCHIMICA ACTA, 184 (8): (2715-2721). [PMID:] [10.1007/s00604-017-2262-8] |
| 9. Wenhua Qiao, Lu Wang, Baoxian Ye, Gaiping Li, Jianjun Li. (2015) Electrochemical behavior of palmatine and its sensitive determination based on an electrochemically reduced L-methionine functionalized graphene oxide modified electrode. ANALYST, 140 (23): (7974-7983). [PMID:26517817] [10.1039/C5AN01770J] |
| 10. Zixin Zhang, Wenpeng Zhang, Tao Bao, Zilin Chen. (2015) Jacket-free stir bar sorptive extraction with bio-inspired polydopamine-functionalized immobilization of cross-linked polymer on stainless steel wire. JOURNAL OF CHROMATOGRAPHY A, [PMID:26141275] [10.1016/j.chroma.2015.06.031] |
| 11. Hailiang Huang, Shuo Shi, Xuyue Zheng, Tianming Yao. (2015) Sensitive detection for coralyne and mercury ions based on homo-A/T DNA by exonuclease signal amplification. BIOSENSORS & BIOELECTRONICS, [PMID:25950941] [10.1016/j.bios.2015.04.076] |
| 12. Jiawei Meng, Wenpeng Zhang, Tao Bao, Zilin Chen. (2015) Novel molecularly imprinted magnetic nanoparticles for the selective extraction of protoberberine alkaloids in herbs and rat plasma. JOURNAL OF SEPARATION SCIENCE, 38 (12): (2117-2125). [PMID:25832420] [10.1002/jssc.201500264] |
| 13. Qing Wang, Zhi-Yuan Luo, Mao Ye, Yu-Zhuo Wang, Li Xu, Zhi-guo Shi, Lanying Xu. (2015) Preparation, chromatographic evaluation and application of adenosine 5′-monophosphate modified ZrO2/SiO2 stationary phase in hydrophilic interaction chromatography. JOURNAL OF CHROMATOGRAPHY A, [PMID:25627970] [10.1016/j.chroma.2015.01.017] |
| 14. Peng Chen, Lancheng Wang, Dandan Xue, Mingjie Xu, Chi Hu. (2025) Post-SELEX optimisation of split aptamers via a supramolecular anchoring strategy. SUPRAMOLECULAR CHEMISTRY, [PMID:] [10.1080/10610278.2025.2548812] |
| 15. Min Chen, Zhiwei Liang, Mengyuan Sun, Zhen Chen, Chun Peng, Suliman Khan, Mubbashar Abbas, Dongmei Chen, Shuyu Xie. (2025) Aryl hydrocarbon receptor-induced activation of AIM2 inflammasome is mediated by MOMP and MPT: A vital therapeutic pathway for inflammation. Cell Reports, 44 (12): [PMID:41385364] [10.1016/j.celrep.2025.116673] |
| 16. Zehao Qu, Weifan Niu, Ziling Teng, Ting Chen, Yanlin Song, Dongcui Li, Yan Huang. (2025) The Encapsulation Mechanism of Palmatine in Anionic Liposomes During Flash Nanoprecipitation. COLLOIDS AND SURFACES B-BIOINTERFACES, [PMID:41443125] [10.1016/j.colsurfb.2025.115384] |
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