Determine the necessary mass, volume, or concentration for preparing a solution.
for enzyme immunoassay, ≥99% for Enzyme immunoassay(ELISA) 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 39 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Chromogenic substrate for the determination of acid and alkaline phosphatases. The reaction produces a soluble end product that is yellow in color. The reaction may be stopped with 3 N NaOH and read at 405 nm.
| Canonical Smiles | C1=CC(=CC=C1[N+](=O)[O-])OP(=O)([O-])[O-].O.O.O.O.O.O.[Na+].[Na+] |
|---|---|
| IUPAC Name | disodium;(4-nitrophenyl) phosphate;hexahydrate |
| InChIKey | KAKKHKRHCKCAGH-UHFFFAOYSA-L |
| INCHI | 1S/C6H6NO6P.2Na.6H2O/c8-7(9)5-1-3-6(4-2-5)13-14(10,11)12;;;;;;;;/h1-4H,(H2,10,11,12);;;6*1H2/q;2*+1;;;;;;/p-2 |
| Isomeric SMILES | C1=CC(=CC=C1[N+](=O)[O-])OP(=O)([O-])[O-].O.O.O.O.O.O.[Na+].[Na+] |
| WGK Germany | 3 |
| Alternate CAS | 4264-83-9 |
| Molecular Weight | 371.14 |
| Beilstein | 6237 |
| Reaxy-Rn | 14249086 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=14249086&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 | Organic acids and derivatives |
| Class | Organic phosphoric acids and derivatives |
| Subclass | Phosphate esters |
| Intermediate Tree Nodes | Aryl phosphates - Aryl phosphomonoesters |
| Direct Parent | Phenyl phosphates |
| Alternative Parents | Nitrobenzenes Phenoxy compounds Nitroaromatic compounds Propargyl-type 1,3-dipolar organic compounds Organic oxoazanium compounds Organopnictogen compounds Organooxygen compounds Organonitrogen compounds Organic sodium salts Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic homomonocyclic compounds |
| Substituents | Phenyl phosphate - Nitrobenzene - Phenoxy compound - Nitroaromatic compound - Monocyclic benzene moiety - Benzenoid - C-nitro compound - Organic nitro compound - Organic oxoazanium - Organic alkali metal salt - Allyl-type 1,3-dipolar organic compound - Propargyl-type 1,3-dipolar organic compound - Organic 1,3-dipolar compound - Organic nitrogen compound - Organic salt - Organic sodium salt - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Organic oxide - Organopnictogen compound - Organic oxygen compound - Aromatic homomonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as phenyl phosphates. These are aromatic organooxygen compounds containing a phosphate group, which is O-esterified with a phenyl group. |
| External Descriptors | Not available |
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 18, 2026 | P118471 | |
| Certificate of Analysis | May 18, 2026 | P118471 | |
| Certificate of Analysis | Jul 21, 2025 | P118471 | |
| Certificate of Analysis | Jul 23, 2024 | P118471 | |
| Certificate of Analysis | May 09, 2023 | P118471 |
| Melt Point(°C) | 300°C |
|---|---|
| Molecular Weight | 371.140 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 6 |
| Hydrogen Bond Acceptor Count | 12 |
| Rotatable Bond Count | 1 |
| Exact Mass | 371.021 Da |
| Monoisotopic Mass | 371.021 Da |
| Topological Polar Surface Area | 124.000 Ų |
| Heavy Atom Count | 22 |
| Formal Charge | 0 |
| Complexity | 238.000 |
| 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 | 9 |
| 1. Yan Li, Mingjie Chen, Huiming Liu, Dandan Zhang, Qing-Shan Shi, Xiao-Bao Xie, Yanzhu Guo. (2023) Antimicrobial Peptide-Inspired Design of Amino-Modified Lignin with Improved Antimicrobial Activities. BIOMACROMOLECULES, [PMID:37908117] [10.1021/acs.biomac.3c00841] |
| 2. Shijie Cao, Leyao Li, Hongwei An, Guobin Mao, Junbiao Dai, Yingxin Ma. (2023) Development of dual-mode ELISA based on ALP-catalyzed APP hydrolysis for IL-6 detection. JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS, [PMID:37783051] [10.1016/j.jpba.2023.115754] |
| 3. Shiyi Chen, Feiyang Tian, Juan Peng, Yan Meng, Yu Wang, Xiaogang He, Qian Wang, Ganghui Chu. (2023) Turning Zr(IV) into a phosphate ester mimetic enzyme via de novo synthesis for hydrolyzing organophosphorus warfare agents and rapid activity prediction by near-infrared spectroscopy. MICROCHEMICAL JOURNAL, [PMID:] [10.1016/j.microc.2023.109379] |
| 4. Guobin Mao, Chunmin Qiu, Xing Luo, Yingqi Liang, Liqing Zhao, Weiren Huang, Junbiao Dai, Yingxin Ma. (2023) Synergistic effect-triggered fluorescence quenching enables rapid and sensitive detection of alkaline phosphatase. ANALYTICA CHIMICA ACTA, [PMID:37355336] [10.1016/j.aca.2023.341510] |
| 5. Yuanhua Zhang, Yan Qiu, Lan Xia, Long Yuan, Hailong Wu, Rui Shi, Anqi Chen, Kai Zhou, Mingxue Zhou, Kailian Zhang, Chunxiang Zhang, Zhining Xia, Qifeng Fu. (2023) Surface Patterning Enhanced Visualization for Ultrasensitive Naked-Eye Detection and RGB-Based High-Density Information Storage. Advanced Optical Materials, 11 (14): (2300010). [PMID:] [10.1002/adom.202300010] |
| 6. Luyu Wei, Fu Jiao, Zhilong Wang, Long Wu, Daming Dong, Yiping Chen. (2022) Enzyme-modulated photothermal immunoassay of chloramphenicol residues in milk and egg using a self-calibrated thermal imager. FOOD CHEMISTRY, [PMID:35636182] [10.1016/j.foodchem.2022.133232] |
| 7. LI Ying, YANG Dan, CHEN Bo, CAO Hai-Yan, ZHANG Qing-Feng. (2021) Antioxidative and digestive enzymes inhibitory activities of 27 edible plants. Food Science and Technology, [PMID:] [10.1590/fst.88621] |
| 8. Honghong Rao, Huiyi Huang, Xinyuan Zhang, Xin Xue, Mingyue Luo, Haixia Liu, Zhonghua Xue. (2020) A simple thermometer-based photothermometric assay for alkaline phosphatase activity based on target-induced nanoprobe generation. NEW JOURNAL OF CHEMISTRY, 44 (41): (17753-17760). [PMID:] [10.1039/D0NJ03920A] |
| 9. Mingyue Luo, Xin Xue, Honghong Rao, Hongqiang Wang, Xiuhui Liu, Xibin Zhou, Zhonghua Xue, Xiaoquan Lu. (2020) Simply converting color signal readout into thermal signal readout for breaking the color resolution limitation of colorimetric sensor. SENSORS AND ACTUATORS B-CHEMICAL, [PMID:] [10.1016/j.snb.2020.127707] |
| 10. Pengjuan Ni, Chuanxia Chen, Yuanyuan Jiang, Chenghui Zhang, Bo Wang, Yizhong Lu, Hua Wang. (2019) A fluorescent assay for alkaline phosphatase activity based on inner filter effect by in-situ formation of fluorescent azamonardine. SENSORS AND ACTUATORS B-CHEMICAL, [PMID:] [10.1016/j.snb.2019.127145] |
| 11. Yunlei Zhou, Fei Li, Hanwen Wu, Yan Chen, Huanshun Yin, Shiyun Ai, Jun Wang. (2019) Electrochemical aptasensing strategy for kanamycin detection based on target-triggered single-strand DNA adsorption on MoS2 nanosheets and enzymatic signal amplification. SENSORS AND ACTUATORS B-CHEMICAL, [PMID:] [10.1016/j.snb.2019.126664] |
| 12. Yaping Zhong, Fengfeng Xue, Peng Wei, Ruohan Li, Chunyan Cao, Tao Yi. (2018) Water-soluble MoS2 quantum dots for facile and sensitive fluorescence sensing of alkaline phosphatase activity in serum and live cells based on the inner filter effect. Nanoscale, 10 (45): (21298-21306). [PMID:30422141] [10.1039/C8NR05549A] |
| 13. Dong He, Wen Luo, Zhiyuan Wang, Pengmei Lv, Zhenhong Yuan, Shaowei Huang, Jingliang Xv. (2017) Establishment and application of a modified membrane-blot assay for Rhizomucor miehei lipases aimed at improving their methanol tolerance and thermostability. ENZYME AND MICROBIAL TECHNOLOGY, [PMID:28465058] [10.1016/j.enzmictec.2017.03.010] |
| 14. Haijian Liu, Ming Li, Yining Xia, Xueqin Ren. (2016) A Turn-On Fluorescent Sensor for Selective and Sensitive Detection of Alkaline Phosphatase Activity with Gold Nanoclusters Based on Inner Filter Effect. ACS Applied Materials & Interfaces, [PMID:27966342] [10.1021/acsami.6b11920] |
| 15. J. B. Fan, S. van de Velde, W. B. Sun, H. Yu, Y. L. Zhang, D. Wang. (2016) Enhanced toxicity of Cry2Ab with cantharidin and its analogues on Mythimna separata. JOURNAL OF APPLIED ENTOMOLOGY, 141 (5): (363-371). [PMID:] [10.1111/jen.12359] |
| 16. Qingming Zhang, Xue Li, Bingchen Li, Huanshun Yin, Shiyun Ai. (2015) An electrochemical biosensor for the activity assay of polynucleotide kinase and inhibitor screening. Analytical Methods, 7 (23): (9984-9991). [PMID:] [10.1039/C5AY02295A] |
| 17. Yunlei Zhou, Zhiqing Yang, Xue Li, Yue Wang, Huanshun Yin, Shiyun Ai. (2015) Electrochemical biosensor for detection of DNA hydroxymethylation based on glycosylation and alkaline phosphatase catalytic signal amplification. ELECTROCHIMICA ACTA, [PMID:] [10.1016/j.electacta.2015.06.043] |
| 18. Mo Wang, Bingchen Li, Qing Zhou, Huanshun Yin, Yunlei Zhou, Shiyun Ai. (2015) Label-free, Ultrasensitive and Electrochemical Immunosensing Platform for microRNA Detection Using Anti-DNA:RNA Hybrid Antibody and Enzymatic Signal Amplification. ELECTROCHIMICA ACTA, [PMID:] [10.1016/j.electacta.2015.03.011] |
| 19. Zhi-Gang Wang, Ji-Lin Zhang, De-Hui Sun, Jia-Zuan Ni. (2014) Novel Ti4+-chelated magnetic nanostructured affinity microspheres containing N-methylene phosphonic chitosan for highly selective enrichment and rapid separation of phosphopeptides. Journal of Materials Chemistry B, 2 (39): (6886-6892). [PMID:32261885] [10.1039/C4TB00916A] |
| 20. Zhang Lihang, Qiu Xinyuan, Zhou Yuting, Luo Zhengyang, Zhu Lingyun, Shao Jiawei, Xie Mingqi, Wang Hui. (2025) A trigger-inducible split-Csy4 architecture for programmable RNA modulation. NUCLEIC ACIDS RESEARCH, 53 (2): [PMID:39817512] [10.1093/nar/gkae1319] |
| 21. Qingzhen Tian, Jinjin Liu, Yuxuan Long, Hao Liang, Kechen Wu, Xi Chen, Qinqin Bai, Xiangheng Niu. (2025) Catalytic preference-enabled exclusive bimodal detection of methyl-paraoxon in complex food matrices using double site-synergized organophosphorus hydrolase-mimetic fluorescent nanozymes. FOOD CHEMISTRY, [PMID:40158368] [10.1016/j.foodchem.2025.144023] |
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| 24. Shu Li, Xinyu Chen, Qingzhen Tian, Jinjin Liu, Zheng Tang, Xiangheng Niu. (2025) Kinetics Difference-driven Organophosphorus Hydrolase-like Nanozyme-Coded Pattern for Identifying p-Nitrophenyl Pesticides. ANALYTICAL CHEMISTRY, [PMID:39835973] [10.1021/acs.analchem.4c06411] |
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| 29. Xin Yu, Xinyi Yang, Junqing Qian, Hui Guo. (2024) Improving liposolubility and lipid antioxidant activity of mangiferin through esterification by lipase. EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY, [PMID:] [10.1002/ejlt.202300216] |
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| 39. Liru Ma, Zhen Feng, Chao Zhang, Haode Chang, Wenjing Zhang, Quanmiao Zhang, Yihong Bao, Chunhe Gu. (2026) Impact of ripening on the distribution of jackfruit polyphenol fractions and their inhibitory activities against metabolic enzymes. Food Chemistry-X, [PMID:] [10.1016/j.fochx.2026.103707] |
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