Proanthocyanidins - ≥95% , CAS No.20347-71-1

CAS: 20347-71-1 Cat. No.: P413229
AVAILABLE TO ORDER
GRADE & PURITY ≥95%
Synonyms
DTXSID90858698 | Procyanidins | CCG-270178 | A908663 | BCP25503 | CHEBI:166895 | 2H-1-Benzopyran-3,4,5,7-tetrol, 2-(3,4-dihydroxyphenyl)-2-[[2-(3,4-dihydroxyphenyl)-3,4-dihydro-5,7-dihydroxy-2H-1-benzopyran-3-yl]oxy]-3,4-dihydro- | 2-(3,4-dihydroxyphenyl)
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
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Status
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Qty
1g
P413229-1g
2
$19.90
5g
P413229-5g
2
$59.90
25g
P413229-25g
3
$199.90
100g
P413229-100g
3
$499.90
500g
P413229-500g
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Why this grade

≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 33 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Proanthocyanidin (Procyanidin) are a class of polyphenolic that are widely distributed in higher plants, consisted of an electrophilic flavanyl unit. Proanthocyanidin can be used as antioxidant and anti-cancers agent. Proanthocyanidin also exhibit anti-inflammatory, cardioprotective, antibacterial and antifungal properties, which can be used in the treatment of chronic venous insufficiency, capillary fragility, sunburn and retinopathy.

Specifications

Synonyms
DTXSID90858698 | Procyanidins | CCG-270178 | A908663 | BCP25503 | CHEBI:166895 | 2H-1-Benzopyran-3, 4, 5, 7-tetrol, 2-(3, 4-dihydroxyphenyl)-2-[[2-(3, 4-dihydroxyphenyl)-3, 4-dihydro-5, 7-dihydroxy-2H-1-benzopyran-3-yl]oxy]-3, 4-dihydro- | 2-(3, 4-dihydroxyphenyl)
Specifications & Purity
≥95%
Biochemical and Physiological Mechanisms
Proanthocyanidins (PAs), also known as condensed tannins, are a class of polyphenols found in a variety of plants. They are very Solidful antioxidants that remove harmful free oxygen radicals from cells.
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Action Type
INHIBITOR
Purity
≥95%
Names and Identifiers
Pubchem Sid504756636
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504756636
Canonical SmilesC1C(C(OC2=CC(=CC(=C21)O)O)C3=CC(=C(C=C3)O)O)OC4(C(C(C5=C(C=C(C=C5O4)O)O)O)O)C6=CC(=C(C=C6)O)O
IUPAC Name2-(3,4-dihydroxyphenyl)-2-[[2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3,4-dihydro-2H-chromen-3-yl]oxy]-3,4-dihydrochromene-3,4,5,7-tetrol
InChIKeyHGVVOUNEGQIPMS-UHFFFAOYSA-N
INCHI1S/C30H26O13/c31-14-7-19(35)16-11-25(28(41-23(16)9-14)12-1-3-17(33)20(36)5-12)43-30(13-2-4-18(34)21(37)6-13)29(40)27(39)26-22(38)8-15(32)10-24(26)42-30/h1-10,25,27-29,31-40H,11H2
Isomeric SMILES C1C(C(OC2=CC(=CC(=C21)O)O)C3=CC(=C(C=C3)O)O)OC4(C(C(C5=C(C=C(C=C5O4)O)O)O)O)C6=CC(=C(C=C6)O)O
Alternate CAS 4852-22-6

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassPhenylpropanoids and polyketides
ClassFlavonoids
SubclassFlavans
Intermediate Tree Nodes Flavan-3-ols
Direct ParentCatechins
Alternative Parents 3'-hydroxyflavonoids  3-hydroxyflavonoids  4'-hydroxyflavonoids  4-hydroxyflavonoids  5-hydroxyflavonoids  7-hydroxyflavonoids  1-benzopyrans  Benzylethers  Catechols  Alkyl aryl ethers  1-hydroxy-4-unsubstituted benzenoids  1-hydroxy-2-unsubstituted benzenoids  Ketals  1,2-diols  Secondary alcohols  Oxacyclic compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Catechin - Hydroxyflavonoid - 7-hydroxyflavonoid - 5-hydroxyflavonoid - 4-hydroxyflavonoid - 4'-hydroxyflavonoid - 3-hydroxyflavonoid - 3'-hydroxyflavonoid - 1-benzopyran - Benzopyran - Chromane - Benzylether - Catechol - 1-hydroxy-4-unsubstituted benzenoid - Alkyl aryl ether - Ketal - Phenol - 1-hydroxy-2-unsubstituted benzenoid - Benzenoid - Monocyclic benzene moiety - Secondary alcohol - 1,2-diol - Polyol - Acetal - Organoheterocyclic compound - Oxacycle - Ether - Organic oxygen compound - Alcohol - Hydrocarbon derivative - Organooxygen compound - Aromatic heteropolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as catechins. These are compounds containing a catechin moiety, which is a 3,4-dihydro-2-chromene-3,5.7-tiol.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

22 results found

Lot NumberCertificate TypeDateItem
H2331034Certificate of AnalysisJun 09, 2026 P413229
G2321155Certificate of AnalysisMay 09, 2026 P413229
C2609083Certificate of AnalysisMar 14, 2026 P413229
B2628114Certificate of AnalysisMar 10, 2026 P413229
D2616523Certificate of AnalysisMar 04, 2026 P413229
D2616524Certificate of AnalysisMar 04, 2026 P413229
D2616525Certificate of AnalysisMar 04, 2026 P413229
D2616502Certificate of AnalysisMar 04, 2026 P413229
D2616354Certificate of AnalysisMar 04, 2026 P413229
L2202425Certificate of AnalysisSep 09, 2025 P413229
L2202333Certificate of AnalysisSep 09, 2025 P413229
L2304033Certificate of AnalysisNov 15, 2022 P413229
L2202331Certificate of AnalysisNov 15, 2022 P413229
L2202281Certificate of AnalysisNov 15, 2022 P413229
K2429115Certificate of AnalysisNov 15, 2022 P413229
K2310016Certificate of AnalysisNov 15, 2022 P413229
A2506233Certificate of AnalysisNov 15, 2022 P413229
G2522074Certificate of AnalysisNov 15, 2022 P413229
G2412023Certificate of AnalysisNov 15, 2022 P413229
E2526094Certificate of AnalysisNov 15, 2022 P413229
E2508034Certificate of AnalysisNov 15, 2022 P413229
E2417071Certificate of AnalysisNov 15, 2022 P413229

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Chemical and Physical Properties
SolubilitySolubility (25°C) In vitro DMSO: 100 mg/mL (168.2 mM); Ethanol: 100 mg/mL (168.2 mM); Water: Insoluble;
DMSO(mg / mL) Max Solubility100
DMSO(mM) Max Solubility168.20292
Water(mg / mL) Max Solubility<1
Molecular Weight594.500 g/mol
XLogP32.000
Hydrogen Bond Donor Count10
Hydrogen Bond Acceptor Count13
Rotatable Bond Count4
Exact Mass594.137 Da
Monoisotopic Mass594.137 Da
Topological Polar Surface Area230.000 Ų
Heavy Atom Count43
Formal Charge0
Complexity957.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count5
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Documents & Articles
Citations of This Product
References
1. Yao Shi, Haojie Zhang, Shuang Li, Danqing Xin, Shiyang Li, Bing Yan, Shuanglian Wang, Chuanyong Liu.  (2023)  Procyanidin improves experimental colitis by regulating macrophage polarization.  BIOMEDICINE & PHARMACOTHERAPY,      [PMID:37478578] [10.1016/j.biopha.2023.115076]
2. Xintao Gao, Yulan Yin, Shuai Liu, Kehong Dong, Jing Wang, Chuanlong Guo.  (2023)  Fucoidan-proanthocyanidins nanoparticles protect against cisplatin-induced acute kidney injury by activating mitophagy and inhibiting mtDNA-cGAS/STING signaling pathway.  INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,      [PMID:37355076] [10.1016/j.ijbiomac.2023.125541]
3. Lin Yamei, Zhi Hongxin, Liu Shengkai, Chen Boyu, Fu Yujie, Liu Zhiguo.  (2022)  Green synthesis, characterization and application on the proanthocyanidins-functionalized Fe3O4 @ Ag nanoparticles.  CHEMICAL PAPERS,  77  (4): (2115-2124).  [PMID:] [10.1007/s11696-022-02614-1]
4. Yao Fan, Siying Che, Lei Zhang, Chunsong Zhou, Haiyan Fu, Yuanbin She.  (2022)  Dual channel sensor array based on ZnCdSe QDs – KMnO4: An effective tool for analysis of catechins and green teas.  FOOD RESEARCH INTERNATIONAL,      [PMID:36076421] [10.1016/j.foodres.2022.111734]
5. Chao Song, Chao Gao, Zhenxin Wang.  (2022)  Grape-Seed-Derived Procyanidin Attenuates Chemotherapy-Induced Cognitive Impairment by Suppressing MMP-9 Activity and Related Blood–Brain-Barrier Damage.  Brain Sciences,  12  (5): (571).  [PMID:35624958] [10.3390/brainsci12050571]
6. Jia Gao, Li Chen, Yongsheng Yan, Jian Lu, Wendong Xing, Jiangdong Dai, Minjia Meng, Yilin Wu.  (2021)  Dot-matrix-initiated molecularly imprinted nanocomposite membranes for selective recognition: a high-efficiency separation system with an anti-oil fouling layer.  Environmental Science-Nano,  (10): (2932-2949).  [PMID:] [10.1039/D1EN00296A]
7. Xianglian Liao, Chunxiu Yang, Huiyun Lin, Buhong Li.  (2021)  Quenching effects of (-)-Epigallocatechin gallate for singlet oxygen production and its protection against oxidative damage induced by Ce6-mediated photodynamic therapy in vitro.  Photodiagnosis and Photodynamic Therapy,      [PMID:34333147] [10.1016/j.pdpdt.2021.102467]
8. Zhishan Liang, Dongfang Han, Fangjie Han, Zhifang Wu, Xin Zhao, Wencai Fu, Wei Wang, Dongxue Han, Li Niu.  (2021)  Novel strategy of natural antioxidant nutrition quality evaluation in food: Oxidation resistance mechanism and synergistic effects investigation.  FOOD CHEMISTRY,      [PMID:33957329] [10.1016/j.foodchem.2021.129768]
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10. Yanyuan Zhou, Huan Lan, Zhewen Dong, Wenjing Cao, Zhen Zeng, Jia-Le Song.  (2021)  Dietary proanthocyanidins alleviated ovarian fibrosis in letrozole-induced polycystic ovary syndrome in rats.  JOURNAL OF FOOD BIOCHEMISTRY,  45  (5): (e13723).  [PMID:33818798] [10.1111/jfbc.13723]
11. Yuanyuan Zhao, Yanqiu Zhang, Feiran Li, Yongping Bai, Yunlu Pan, Jun Ma, Sui Zhang, Lu Shao.  (2021)  Ultra-robust superwetting hierarchical membranes constructed by coordination complex networks for oily water treatment.  JOURNAL OF MEMBRANE SCIENCE,      [PMID:] [10.1016/j.memsci.2021.119234]
12. Fangjie Han, Zhongqian Song, Jianan Xu, Mengjiao Dai, Shulin Luo, Dongxue Han, Li Niu, Zhenxin Wang.  (2021)  Oxidized titanium carbide MXene-enabled photoelectrochemical sensor for quantifying synergistic interaction of ascorbic acid based antioxidants system.  BIOSENSORS & BIOELECTRONICS,      [PMID:33465536] [10.1016/j.bios.2021.112978]
13. Shixian Deng, Baihan Zhao, Yayan Xing, Yuzhe Shi, Yujie Fu, Zhiguo Liu.  (2021)  Green synthesis of proanthocyanidins-functionalized Au/Ag bimetallic nanoparticles.  Green Chemistry Letters and Reviews,      [PMID:] [10.1080/17518253.2020.1861343]
14. Yuzhe Shi, Yayan Xing, Shixian Deng, Baihan Zhao, Yujie Fu, Zhiguo Liu.  (2020)  Synthesis of proanthocyanidins-functionalized Fe3O4 magnetic nanoparticles with high solubility for removal of heavy-metal ions.  CHEMICAL PHYSICS LETTERS,      [PMID:] [10.1016/j.cplett.2020.137600]
15. Haoqi Tan, Junjie Sun, Dawei Jin, Jialin Song, Miao Lei, Artem Antoshin, Xin Chen, Meng Yin, Xue Qu, Changsheng Liu.  (2020)  Coupling PEG-LZM polymer networks with polyphenols yields suturable biohydrogels for tissue patching.  Biomaterials Science,  (12): (3334-3347).  [PMID:32432582] [10.1039/D0BM00429D]
16. Ling Zhou, Pan-Pan Huang, Lin-Lin Chen, Ping Wang.  (2019)  Panax Notoginseng Saponins Ameliorate Aβ-Mediated Neurotoxicity in C. elegans through Antioxidant Activities.  Evidence-based Complementary and Alternative Medicine,      [PMID:31275419] [10.1155/2019/7621043]
17. Linhai Biao, Shengnan Tan, Xuewei Zhang, Jing Gao, Zhiguo Liu, Yujie Fu.  (2018)  Synthesis and characterization of proanthocyanidins-functionalized Ag nanoparticles.  COLLOIDS AND SURFACES B-BIOINTERFACES,      [PMID:29852432] [10.1016/j.colsurfb.2018.05.050]
18. Chen Lu, You Qian, Hu Liang, Gao Jian, Meng Qianqian, Liu Wentao, Wu Xuefeng, Xu Qiang.  (2018)  The Antioxidant Procyanidin Reduces Reactive Oxygen Species Signaling in Macrophages and Ameliorates Experimental Colitis in Mice.  Frontiers in Immunology,      [PMID:29354126] [10.3389/fimmu.2017.01910]
19. Mengshuo Li, Gang Hu, Yangyang Chen.  (2015)  Evaluation of the antioxidant capacity of natural polyphenolic compounds using a macrocyclic Ni-(II) complex-catalysed Briggs–Rauscher reaction.  FOOD CHEMISTRY,      [PMID:26617044] [10.1016/j.foodchem.2015.11.004]
20. Ya-Nan Zhao, Jianjun Gu, Siyu Jia, Ying Guan, Yongjun Zhang.  (2015)  Zero-order release of polyphenolic drugs from dynamic, hydrogen-bonded LBL films.  Soft Matter,  12  (4): (1085-1092).  [PMID:26577014] [10.1039/C5SM02186C]
21. Kun Li, Zheng-Hao Zhao, Tian-Yi Yang, Hai-Long Wang, Li Deng, Kai-Hua Wang, Wen-Feng Ren, Run-Cang Sun.  (2024)  A biomass-based protective layer with rigid structure and ion conductivity for high-performance lithium metal batteries.  ELECTROCHIMICA ACTA,      [PMID:] [10.1016/j.electacta.2024.145220]
22. Shihang Sun, Xiujuan Qi, Zhenzhen Zhang, Leiming Sun, Ran Wang, Yukuo Li, Jinyong Chen, Hong Gu, Jinbao Fang, Miaomiao Lin.  (2024)  A structural variation in the promoter of the leucoanthocyanidin reductase gene AaLAR1 enhances freezing tolerance by modulating proanthocyanidin accumulation in kiwifruit (Actinidia arguta).  PLANT CELL AND ENVIRONMENT,      [PMID:38884345] [10.1111/pce.15003]
23. Chen Chen, Yu Chen, Zhiyi Ye, Ahmad Ali, Shun Yao.  (2024)  Bioactive Deep Eutectic Solvent-Involved Sprayable Versatile Hydrogel for Monkeypox Virus Lesions Treatment.  ACS Applied Materials & Interfaces,      [PMID:39727382] [10.1021/acsami.4c14905]
24. Qingxin Wu, Zhengfeng Lu, Lantao Wang, Shuting Peng, Zhengxiao Wang, Yan Qiu, Zhengping Liao, Yarong Wang, Xiaofei Qin.  (2025)  Konjac glucomannan/xanthan gum hydrogels loaded with metal-phenolic networks encapsulated probiotic to promote infected wound healing.  CARBOHYDRATE POLYMERS,      [PMID:39914948] [10.1016/j.carbpol.2025.123243]
25. Shaoyin Wei, Dong Yang, Zeyu Shou, Yipiao Zhang, Shengwu Zheng, Xingjie Zan, Lianxin Li, Chunwu Zhang.  (2025)  Proanthocyanidin Capsules Remodel the ROS Microenvironment via Regulating MAPK Signaling for Accelerating Diabetic Wound Healing.  Materials Today Bio,      [PMID:39896292] [10.1016/j.mtbio.2025.101467]
26. Linxiao Sun, Shaoyin Wei, Chenglong Wang, Yipiao Zhang, Xingjie Zan, Lianxin Li, Chunwu Zhang.  (2024)  Procyanidin capsules provide a new option for long-term ROS scavenging in chronic inflammatory diseases.  Materials Today Bio,      [PMID:39534678] [10.1016/j.mtbio.2024.101310]
27. Zhanjun Li, Yibin Xu, Yunwei Liu, Mingru Kong, Jiarong Wang, Yanxia Li, Yuhong Zhao.  (2024)  Study on the extraction, purification, stability, free radical scavenging kinetics, polymerization degree and characterization of proanthocyanidins from Pinus koraiensis seed scales.  FOOD CHEMISTRY,      [PMID:38824782] [10.1016/j.foodchem.2024.139776]
28. Shuwen Li, Zhiguo Wang, Siyi Chen, Jialin Gu, Yanping Ma, Jiangang Jiang, Rui Zhang, Dan Zhang, Yiping Wang, He Wang.  (2022)  Ratiometric fluorescence sensing based on rare-earth upconversion nanoparticles for the rapid identification of antioxidant capacity.  NEW JOURNAL OF CHEMISTRY,  47  (4): (2079-2085).  [PMID:] [10.1039/D2NJ05429A]
29. Zhibin Dong, Fengjun Ma, Xiaocen Wei, Linlin Zhang, Yongling Ding, Lei Shi, Chen Chen, Yuxia Ma, Yuning Ma.  (2024)  Injectable, thermo-sensitive and self-adhesive supramolecular hydrogels built from binary herbal small molecules towards reusable antibacterial coatings.  RSC Advances,  14  (3): (2027-2035).  [PMID:38196913] [10.1039/D3RA07882E]
30. Gen Li, Chunxiu Cai, Ning Zhang, Zijia Wang, Mingzhe Zhang, Quan Liu, Siyu Chen, Yanfei Shang, Chengqing Zhao, Shenzhen Ren, Hailong An.  (2025)  Carrier-free procyanidin-ferric nanonetworks loading gefitinib to inhibit TMEM16A-EGFR mutual activation loop for photothermally enhanced breast cancer targeted therapy.  Materials Today Bio,      [PMID:41158712] [10.1016/j.mtbio.2025.102426]
31. Nai-Cui Liu, Yu-Zhu Zhao, Tao Zhan, Moldir Rustem, Zhencheng Chen, Guo-Cheng Han, Xiao-Zhen Feng, Heinz-Bernhard Kraatz.  (2025)  Hydroxylated Multi-Walled Carbon Nanotubes and Spherical Zn-MOF Nanoparticles Enable Electrochemical Detection of Trans-Resveratrol.  JOURNAL OF THE ELECTROCHEMICAL SOCIETY,      [PMID:] [10.1149/1945-7111/ae125c]
32. Zhaohui Yan, Zhiyuan Zheng, Sijia Cao, Renzhao Zhang, Yudan Zhang, Ting Zhang, Jingbo Liu, Xuanting Liu.  (2025)  Polyphenol-modified ovalbumin-lysozyme heteroprotein microcapsules: A complex coacervation approach for enhancing probiotic viability.  FOOD CHEMISTRY,      [PMID:41391404] [10.1016/j.foodchem.2025.147545]
33. Cheng Wang, Shaoyin Wei, Qingtian Tang, Kaixian Deng, Hongjun Jin, Huali Weng, Xingjie Zan, Qiangqiang Li.  (2026)  Procyanidin Capsules Relieve Inflammation in Hypertriglyceridemic Acute Pancreatitis via Regulating Oxidative Phosphorylation Signaling.  ACS Omega,      [PMID:41799146] [10.1021/acsomega.5c09867]
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