Determine the necessary mass, volume, or concentration for preparing a solution.
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≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at 2-8°C Ships Wet ice Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 14 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
(−)-Gallocatechin-3 is a polyphenolic compound and one of the major catechins found in green tea (Camellia sinensis).
Examples of the use of (−)-gallocatechin as a reference standard:
Identification of polyphenols in pineapple (Ananas comosus) by HPLC;
Profiling of catechins from green tea (Camellia sinensis) by RP-HPLC/photodiode array detection (RP-HPLC/PDAD);
As a reference standard for the characterization of flavan-3-ols (flavanols) in muscadine grape hybrids by HPLC-qTOF-MS/MS.
| Canonical Smiles | C1C(C(OC2=CC(=CC(=C21)O)O)C3=CC(=C(C(=C3)O)O)O)O |
|---|---|
| IUPAC Name | (2S,3R)-2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol |
| InChIKey | XMOCLSLCDHWDHP-DOMZBBRYSA-N |
| INCHI | 1S/C15H14O7/c16-7-3-9(17)8-5-12(20)15(22-13(8)4-7)6-1-10(18)14(21)11(19)2-6/h1-4,12,15-21H,5H2/t12-,15+/m1/s1 |
| Isomeric SMILES | C1[C@H]([C@@H](OC2=CC(=CC(=C21)O)O)C3=CC(=C(C(=C3)O)O)O)O |
| WGK Germany | 3 |
| Molecular Weight | 306.27 |
| Reaxy-Rn | 9090619 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=9090619&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Phenylpropanoids and polyketides |
| Class | Flavonoids |
| Subclass | Flavans |
| Intermediate Tree Nodes | Flavan-3-ols - Catechins |
| Direct Parent | Epigallocatechins |
| Alternative Parents | 7-hydroxyflavonoids 5-hydroxyflavonoids 4'-hydroxyflavonoids 3-hydroxyflavonoids 3'-hydroxyflavonoids 1-benzopyrans Pyrogallols and derivatives Alkyl aryl ethers 1-hydroxy-4-unsubstituted benzenoids 1-hydroxy-2-unsubstituted benzenoids Benzene and substituted derivatives Secondary alcohols Polyols Oxacyclic compounds Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | Epigallocatechin - 3'-hydroxyflavonoid - 3-hydroxyflavonoid - 4'-hydroxyflavonoid - 5-hydroxyflavonoid - 7-hydroxyflavonoid - Hydroxyflavonoid - 1-benzopyran - Chromane - Benzopyran - Pyrogallol derivative - Benzenetriol - 1-hydroxy-4-unsubstituted benzenoid - 1-hydroxy-2-unsubstituted benzenoid - Alkyl aryl ether - Phenol - Benzenoid - Monocyclic benzene moiety - Secondary alcohol - Polyol - Organoheterocyclic compound - Oxacycle - Ether - Hydrocarbon derivative - Alcohol - Organic oxygen compound - Organooxygen compound - Aromatic heteropolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as epigallocatechins. These are compounds containing epigallocatechin or a derivative. Epigallocatechin is a flavan-3-ol containing a benzopyran-3,5,7-triol linked to a 3,4,5-hydroxyphenyl moiety. |
| External Descriptors | gallocatechin |
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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 | May 21, 2026 | G133381 | |
| Certificate of Analysis | Sep 09, 2025 | G133381 | |
| Certificate of Analysis | Sep 09, 2025 | G133381 | |
| Certificate of Analysis | Sep 09, 2025 | G133381 | |
| Certificate of Analysis | May 08, 2025 | G133381 | |
| Certificate of Analysis | May 08, 2025 | G133381 | |
| Certificate of Analysis | Nov 07, 2024 | G133381 |
| Solubility | H2O: 5 mg/mL with brief sonication: alcohol: soluble |
|---|---|
| Sensitivity | Light & Moisture Sensitive. |
| Molecular Weight | 306.270 g/mol |
| XLogP3 | 0.000 |
| Hydrogen Bond Donor Count | 6 |
| Hydrogen Bond Acceptor Count | 7 |
| Rotatable Bond Count | 1 |
| Exact Mass | 306.074 Da |
| Monoisotopic Mass | 306.074 Da |
| Topological Polar Surface Area | 131.000 Ų |
| Heavy Atom Count | 22 |
| Formal Charge | 0 |
| Complexity | 380.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 2 |
| 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. Lihua Li, Zhanli Zhao, Shuying Wei, Ke Xu, Junfang Xia, Qiushuang Wu, Xin Lü, Li Wang. (2023) Development and application of multifunctional films based on modified chitosan/gelatin polyelectrolyte complex for preservation and monitoring. FOOD HYDROCOLLOIDS, [PMID:] [10.1016/j.foodhyd.2023.109336] |
| 2. Xiao-Hua Zhang, Hui-Na Cui, Jing-Jing Zheng, Xiang-Dong Qing, Kai-Long Yang, Ya-Qian Zhang, Lu-Meng Ren, Le-Yuan Pan, Xiao-Li Yin. (2022) Discrimination of the harvesting season of green tea by alcohol/salt-based aqueous two-phase systems combined with chemometric analysis. FOOD RESEARCH INTERNATIONAL, [PMID:36596188] [10.1016/j.foodres.2022.112278] |
| 3. Hui-Wen Gu, Xiao-Li Yin, Tian-Qin Peng, Yuan Pan, Hui-Na Cui, Zhi-Quan Li, Weiqing Sun, Baomiao Ding, Xian-Chun Hu, Zi-Hong Zhang, Zhi Liu. (2021) Geographical origin identification and chemical markers screening of Chinese green tea using two-dimensional fingerprints technique coupled with multivariate chemometric methods. FOOD CONTROL, [PMID:] [10.1016/j.foodcont.2021.108795] |
| 4. Yu-Meng Zhu, Jun-Jie Dong, Jing Jin, Jin-Hua Liu, Xin-Qiang Zheng, Jian-Liang Lu, Yue-Rong Liang, Jian-Hui Ye. (2021) Roasting process shaping the chemical profile of roasted green tea and the association with aroma features. FOOD CHEMISTRY, [PMID:33714119] [10.1016/j.foodchem.2021.129428] |
| 5. Tian-Qin Peng, Xiao-Li Yin, Hui-Wen Gu, Weiqing Sun, Baomiao Ding, Xian-Chun Hu, Li-An Ma, Shu-Dong Wei, Zhi Liu, Shi-Yi Ye. (2020) HPLC-DAD fingerprints combined with chemometric techniques for the authentication of plucking seasons of Laoshan green tea. FOOD CHEMISTRY, [PMID:33465688] [10.1016/j.foodchem.2020.128959] |
| 6. Dandan Qin, Qiushuang Wang, Hongjian Li, Xiaohui Jiang, Kaixing Fang, Qing Wang, Bo Li, Chendong Pan, Hualing Wu. (2020) Identification of key metabolites based on non-targeted metabolomics and chemometrics analyses provides insights into bitterness in Kucha [Camellia kucha (Chang et Wang) Chang]. FOOD RESEARCH INTERNATIONAL, [PMID:33288175] [10.1016/j.foodres.2020.109789] |
| 7. Huan Fang, Tong Wang, Lan Chen, Xiao-Zhi Wang, Hai-Long Wu, Yao Chen, Ru-Qin Yu. (2024) Rapid authenticity identification of high-quality Wuyi Rock tea by multidimensional fluorescence spectroscopy coupled with chemometrics. JOURNAL OF FOOD COMPOSITION AND ANALYSIS, [PMID:] [10.1016/j.jfca.2024.106632] |
| 8. Yating Guo, Yani Pan, Xinyu Feng, Haowei Guo, Liping Liu, Kexin Zhang, Haojun Xie, Binkai Zhu, Shuying Gong, Qiang Chu, Hua Fang, Ping Chen. (2025) Reshaped local microbiology metabolism by raw tea according to pile fermentation in the dark tea. Journal of Advanced Research, [PMID:40064439] [10.1016/j.jare.2025.02.039] |
| 9. Lan Zhang, Haocun Kong, Bimal Chitrakar, Xiaofeng Ban, Zhengbiao Gu, Yan Hong, Li Cheng, Zhaofeng Li, Caiming Li. (2024) The substitution sites of hydroxyl and galloyl groups determine the inhibitory activity of human pancreatic α-amylase in twelve tea polyphenol monomers. INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, [PMID:38181909] [10.1016/j.ijbiomac.2023.129189] |
| 10. Ruijie Liu, Jeroen Kool, Jingyi Jian, Jincai Wang, Xianglong Zhao, Zhengjin Jiang, Tingting Zhang. (2020) Rapid Screening α-Glucosidase Inhibitors from Natural Products by At-Line Nanofractionation with Parallel Mass Spectrometry and Bioactivity Assessment. JOURNAL OF CHROMATOGRAPHY A, [PMID:33271429] [10.1016/j.chroma.2020.461740] |
| 11. Haolin Zhang, Jingjing Zhang, Hui Cao, Petra Högger, Randolph Arroo, Mohamed A. Farag, Avi Shpigelman, Jianbo Xiao, Chunlin Li. (2025) Amination of Flavonoids Possessing a Pyrogallol Group in Cell Culture Medium at 37°C. Food Frontiers, 6 (2): (1058-1078). [PMID:] [10.1002/fft2.70002] |
| 12. Quanyong Wu, Caohuizi Xiao, Boya Ouyang, Jesus Simal-Gandara, Yaping Qi, Zi Chen. (2025) Tea Polyphenols Enhance Embryonic Development and Mitigate DMSO-Induced Toxicity in Drosophila. eFood, 6 (6): (e70091). [PMID:] [10.1002/efd2.70091] |
| 13. Dunchao Wu, Yufei He, Juanshu Wen, Hongfa Zheng, Xi Zhao, Penghui Yu, Ni Zhong, Li Niu, Shi Li, Yong Lin, Hao Huang, Zhonghua Liu. (2026) Multidimensional Analysis Reveals the Flavor Quality Formation Mechanism During the Primary Pile Fermentation of Dark Tea. Foods, 15 (2): (212). [PMID:41596811] [10.3390/foods15020212] |
| 14. Shiyu Zhang, Xinzhuan Yao, Yanxia Wang, Muhammad Safiullah Virk, Shiyu Tian, Zhenkedai Yuan, Qihong Zou, Linlin Li, Shenyuan Ye, Hu Tang, Litang Lu. (2026) Chemical and Sensory Characteristics of Baiye No.1 (BY1H) Yellow Tea: Insights into Flavoring Mechanism and Quality Valuation. Food Bioscience, [PMID:] [10.1016/j.fbio.2026.108380] |