AVAILABLE TO ORDER
GRADE & PURITY ≥95%
Synonyms
4,4'-Azodibenzoic Acid | 4,4'-(E)-diazene-1,2-diyldibenzoic acid | 4-[(4-carboxyphenyl)diazenyl]benzoic acid
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
A151052-250mg
4

$9.90

$14.90
Save $5.00 (33.56%)
1g
A151052-1g
5

$22.90

$34.90
Save $12.00 (34.38%)
5g
A151052-5g
1

$86.90

$130.90
Save $44.00 (33.61%)
10g
A151052-10g
2

$156.90

$235.90
Save $79.00 (33.49%)
25g
A151052-25g
2

$304.90

$457.90
Save $153.00 (33.41%)
Enter a quantity for the sizes you want to add.

Specifications

Synonyms
4, 4'-Azodibenzoic Acid | 4, 4'-(E)-diazene-1, 2-diyldibenzoic acid | 4-[(4-carboxyphenyl)diazenyl]benzoic acid
Specifications & Purity
≥95%
Storage
Room temperature
Shipped In
Normal
Purity
≥95%
Names and Identifiers
Pubchem Sid488181354
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488181354
Canonical SmilesC1=CC(=CC=C1C(=O)O)N=NC2=CC=C(C=C2)C(=O)O
IUPAC Name4-[(4-carboxyphenyl)diazenyl]benzoic acid
InChIKeyNWHZQELJCLSKNV-UHFFFAOYSA-N
INCHI1S/C14H10N2O4/c17-13(18)9-1-5-11(6-2-9)15-16-12-7-3-10(4-8-12)14(19)20/h1-8H,(H,17,18)(H,19,20)
Isomeric SMILES C1=CC(=CC=C1C(=O)O)N=NC2=CC=C(C=C2)C(=O)O
Molecular Weight 270.24
Beilstein 16(4)360
Reaxy-Rn 960298
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=960298&ln=

Documentation

📋 Safety Data Sheet (SDS)

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

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✅ 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
SuperclassOrganoheterocyclic compounds
ClassAzobenzenes
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentAzobenzenes
Alternative Parents Benzoic acids  Benzoyl derivatives  Azo compounds  Propargyl-type 1,3-dipolar organic compounds  Carboxylic acids  Organooxygen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Azobenzene - Benzoic acid or derivatives - Benzoic acid - Benzoyl - Monocyclic benzene moiety - Benzenoid - Azo compound - Organic 1,3-dipolar compound - Carboxylic acid derivative - Carboxylic acid - Propargyl-type 1,3-dipolar organic compound - Organic nitrogen compound - Hydrocarbon derivative - Organic oxygen compound - Organonitrogen compound - Organooxygen compound - Organic oxide - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as azobenzenes. These are organonitrogen aromatic compounds that contain a central azo group, where each nitrogen atom is conjugated to a benzene ring.
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.

23 results found

Lot NumberCertificate TypeDateItem
I2215105Certificate of AnalysisJun 15, 2026 A151052
G2528107Certificate of AnalysisJul 16, 2025 A151052
G2528111Certificate of AnalysisJul 16, 2025 A151052
G2528110Certificate of AnalysisJul 16, 2025 A151052
G2528109Certificate of AnalysisJul 16, 2025 A151052
G2528108Certificate of AnalysisJul 16, 2025 A151052
E2606077Certificate of AnalysisJul 16, 2025 A151052
B2508201Certificate of AnalysisJan 20, 2025 A151052
B2508228Certificate of AnalysisJan 20, 2025 A151052
B2508227Certificate of AnalysisJan 20, 2025 A151052
B2508224Certificate of AnalysisJan 20, 2025 A151052
B2508208Certificate of AnalysisJan 20, 2025 A151052
H2402107Certificate of AnalysisMay 11, 2024 A151052
H2402108Certificate of AnalysisMay 11, 2024 A151052
H2402109Certificate of AnalysisMay 11, 2024 A151052
E2429107Certificate of AnalysisMay 08, 2024 A151052
E2429108Certificate of AnalysisMay 08, 2024 A151052
C2306858Certificate of AnalysisAug 11, 2022 A151052
C2306853Certificate of AnalysisAug 11, 2022 A151052
I2215101Certificate of AnalysisAug 11, 2022 A151052
I2215103Certificate of AnalysisAug 11, 2022 A151052
I2215104Certificate of AnalysisAug 11, 2022 A151052
F2228118Certificate of AnalysisJun 30, 2022 A151052

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Chemical and Physical Properties
Molecular Weight270.240 g/mol
XLogP32.800
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count6
Rotatable Bond Count4
Exact Mass270.064 Da
Monoisotopic Mass270.064 Da
Topological Polar Surface Area99.300 Ų
Heavy Atom Count20
Formal Charge0
Complexity345.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
References
1. Wenhe Luo, Yanqiao Zeng, Qingle Song, Yu Wang, Feng Yuan, Qi Li, Yingnan Liu, Su Li, Nahar Jannatun, Guofang Zhang, Yang Li.  (2023)  Strengthening the Combinational Immunotherapy from Modulating the Tumor Inflammatory Environment via Hypoxia-Responsive Nanogels.  Advanced Healthcare Materials,      [PMID:38062634] [10.1002/adhm.202302865]
2. Fei Nie, Ru Yu, Lina Wang, Liping Jiang, Qi Wu, Wenhua Xu, Xiaolong Fu.  (2023)  Electrochemiluminescence Properties and Sensing Application of Zn(II)–Metal–Organic Frameworks Constructed by Mixed Ligands of Para Dicarboxylic Acids and 1,10-Phenanthroline.  ACS Omega,      [PMID:38027346] [10.1021/acsomega.3c02559]
3. Yiyi Xia, Tiantian Wang, Linjie Wu, Haiqing Zhong, Yi Zhou, Peng Ke, Xiaoyan Bao, Qi Dai, Qiyao Yang, Yiying Lu, Donghang Xu, Min Liang, Min Han.  (2022)  Blocking CD47 with restructured peptide nanoparticles for motivating phagocytosis to inhibit tumor progression.  Biomaterials Science,  10  (15): (4324-4334).  [PMID:35775458] [10.1039/D2BM00189F]
4. Zhong Hui, Zhang Tianci, Zeng Qingli, Li Laisheng.  (2022)  Preparation and Evaluation of an Azobenzenediamide Bridged bis(β-Cyclodextrin)-Bonded Chiral Stationary Phase for HPLC.  JOURNAL OF CHROMATOGRAPHIC SCIENCE,  61  (7): (625-636).  [PMID:35726164] [10.1093/chromsci/bmac050]
5. Xue Liu, Zhenfeng Wu, Chunjing Guo, Huimin Guo, Yanguo Su, Qiang Chen, Changgang Sun, Qingming Liu, Daquan Chen, Hongjie Mu.  (2021)  Hypoxia responsive nano-drug delivery system based on angelica polysaccharide for liver cancer therapy.  DRUG DELIVERY,      [PMID:34967268] [10.1080/10717544.2021.2021324]
6. Tianjiao Wang, Jun Zhao, Chuanxin Weng, Tong Wang, Yayun Liu, Zhipeng Han, Zhong Zhang.  (2021)  A bidirectionally reversible light-responsive actuator based on shape memory polyurethane bilayer.  COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING,      [PMID:] [10.1016/j.compositesa.2021.106322]
7. Wenliang Wang, Lin Lin, Xiaojing Ma, Bo Wang, Sanrong Liu, Xinxin Yan, Shengran Li, Huayu Tian, Xifei Yu.  (2018)  Light-Induced Hypoxia-Triggered Living Nanocarriers for Synergistic Cancer Therapy.  ACS Applied Materials & Interfaces,      [PMID:29781276] [10.1021/acsami.8b03506]
8. Shizhen Geng, Pengke Guo, Xinling Li, Yaru Shi, Jing Wang, Mengnian Cao, Yunya Zhang, Kaixiang Zhang, Airong Li, Haiwei Song, Zhenzhong Zhang, Jinjin Shi, Junjie Liu, Yiling Yang.  (2024)  Biomimetic Nanovehicle-Enabled Targeted Depletion of Intratumoral Fusobacterium nucleatum Synergizes with PD-L1 Blockade against Breast Cancer.  ACS Nano,      [PMID:38497600] [10.1021/acsnano.3c12687]
9. Xinchang Huang, Hechun Li, Qi Wang, Yan Liao, Xiaomei Xie, Yinglin Zhou, Dezhou Wu, Huanan Li.  (2025)  Hypoxia-responsive albumin nanoparticles co-delivering banoxantrone and STING agonist enhance immunotherapy of high-intensity focused ultrasound.  JOURNAL OF CONTROLLED RELEASE,      [PMID:40318808] [10.1016/j.jconrel.2025.113789]
10. Yanjing Yun, Weitao Yang, Yan Xu, Kexin Bian, Dinghua Liu, Hui Wang, Chang Liu, Shuang Wu, Bingbo Zhang.  (2025)  Ferric Ion-Release Nanoprobes for Hypoxia Magnetic Resonance Imaging and Radiotherapy Stratification in Solid Tumors.  ACS Nano,      [PMID:41292311] [10.1021/acsnano.5c15463]
11. Chengcai He, Ye Zhang, Xiaozhen Liu, Chengmu Yu, Jie Lv, Yulong Lin, Lianmei Zhao, Meng Li.  (2025)  Self-amplifying hypoxia cascade in covalent organic framework/metal organic framework nanoreactors for synergistic cancer therapy.  JOURNAL OF COLLOID AND INTERFACE SCIENCE,      [PMID:41353990] [10.1016/j.jcis.2025.139602]
12. Zhang Zuhong, Zhu Rui, Li Guixiang, Tang Ying, Wu Hongzhuo, Zhao Jinbo, Wu Jiaxin, Gries Thomas W., Musiienko Artem, Zuo Shengnan, Li Zhe, He Bingchen, Su Zhenhuang, Gao Xingyu, Zuo Weiwei, Hou Bo, Pascual Jorge, Sapienza Luca, Wang Luyao, Deng Lin-Long, Jia Yu, Li Gang, Dyson Paul J., Nazeeruddin Mohammad Khaja, Saliba Michael, Abate Antonio, Li Meng.  (2026)  Photoswitchable isomers to improve grain boundary resilience and perovskite solar cells stability under light cycling.  Nature Energy,      [PMID:] [10.1038/s41560-026-01993-z]
13. Guo-Qin Zhang, Jiang-Long Chen, Yu-Ting Han, Zhi-Yuan Liu, Hong-Bin Luo, Xiao-Ming Ren.  (2026)  Enhanced Light-Responsive Proton Conduction in MOF-808 via Cooperative Azobenzene and Ionic Liquid Functionalization.  INORGANIC CHEMISTRY,      [PMID:41706815] [10.1021/acs.inorgchem.5c05937]
Solution Calculators
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