Determine the necessary mass, volume, or concentration for preparing a solution.
≥98%(T) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature,Desiccated,Cool Ships Normal 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 9 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Octylphosphonic acid (OPA) forms a self-assembled monolayer (SAM), which serves as a protective anti-corrosive phosphonate layer on a variety of surfaces.
Application
OPA can be used as a surfactant that may be added to silver (Ag)/titanium oxide (TiO2) for uniform dispersion into the polymeric matrix. It may be coated on indium-tin oxide (ITO) substrates, which can be used for super-resolution microscopy. OPA based charge blocking layer may be used to prevent leakage of current in a hybrid dielectric film.
| Pubchem Sid | 488185579 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488185579 |
| Canonical Smiles | CCCCCCCCP(=O)(O)O |
| IUPAC Name | octylphosphonic acid |
| InChIKey | NJGCRMAPOWGWMW-UHFFFAOYSA-N |
| INCHI | 1S/C8H19O3P/c1-2-3-4-5-6-7-8-12(9,10)11/h2-8H2,1H3,(H2,9,10,11) |
| Isomeric SMILES | CCCCCCCCP(=O)(O)O |
| WGK Germany | 2 |
| Molecular Weight | 194.21 |
| Reaxy-Rn | 1764242 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1764242&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 phosphonic acids and derivatives |
| Subclass | Organic phosphonic acids |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Organic phosphonic acids |
| Alternative Parents | Organopnictogen compounds Organophosphorus compounds Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aliphatic acyclic compounds |
| Substituents | Organophosphonic acid - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organophosphorus compound - Aliphatic acyclic compound |
| Description | This compound belongs to the class of organic compounds known as organic phosphonic acids. These are organic compounds containing phosphonic acid. |
| 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 | Aug 06, 2026 | N159772 | |
| Certificate of Analysis | Aug 06, 2026 | N159772 | |
| Certificate of Analysis | Aug 06, 2026 | N159772 | |
| Certificate of Analysis | Aug 06, 2026 | N159772 | |
| Certificate of Analysis | Oct 11, 2025 | N159772 | |
| Certificate of Analysis | Jul 14, 2025 | N159772 | |
| Certificate of Analysis | Jul 14, 2025 | N159772 | |
| Certificate of Analysis | Jul 14, 2025 | N159772 | |
| Certificate of Analysis | Jul 14, 2025 | N159772 | |
| Certificate of Analysis | Jul 14, 2025 | N159772 | |
| Certificate of Analysis | Jul 14, 2025 | N159772 | |
| Certificate of Analysis | Dec 12, 2024 | N159772 | |
| Certificate of Analysis | Oct 20, 2023 | N159772 | |
| Certificate of Analysis | Feb 28, 2023 | N159772 | |
| Certificate of Analysis | Nov 19, 2021 | N159772 | |
| Certificate of Analysis | Nov 19, 2021 | N159772 | |
| Certificate of Analysis | Nov 19, 2021 | N159772 | |
| Certificate of Analysis | Nov 19, 2021 | N159772 | |
| Certificate of Analysis | Nov 19, 2021 | N159772 | |
| Certificate of Analysis | Nov 19, 2021 | N159772 | |
| Certificate of Analysis | Nov 19, 2021 | N159772 |
| Solubility | Slightly soluble in organic solvents and water. |
|---|---|
| Melt Point(°C) | 102-103°C |
| Molecular Weight | 194.210 g/mol |
| XLogP3 | 1.800 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 7 |
| Exact Mass | 194.107 Da |
| Monoisotopic Mass | 194.107 Da |
| Topological Polar Surface Area | 57.500 Ų |
| Heavy Atom Count | 12 |
| Formal Charge | 0 |
| Complexity | 141.000 |
| 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. Qiangqiang Wang, Xuanyu Zhang, Lei Qian, Chaoyu Xiang. (2023) Improving Perovskite Green Quantum Dot Light-Emitting Diode Performance by Hole Interface Buffer Layers. ACS Applied Materials & Interfaces, [PMID:37272407] [10.1021/acsami.3c04592] |
| 2. Fengchang Huang, Xiaoming Mo, Xuesong Li, Maolan Peng, Yulu Zhou, Xiaoma Tao, Yifang Ouyang, Jialong Zhao. (2022) Improved efficiency for lead-free CsCu2I3 halide microplatelets by suppressing surface pinholes via surface functionalization. JOURNAL OF LUMINESCENCE, [PMID:] [10.1016/j.jlumin.2022.119390] |
| 3. Weinan Xue, Xin Zhang, Wei Zhu, Xue Zhang, Wei Wang, Linwei Peng, Xiang Ma, Yan Li. (2022) Large-scale heterogeneous synthesis of monodisperse high performance colloidal CsPbBr3 nanocrystals. Fundamental Research, [PMID:] [10.1016/j.fmre.2022.05.030] |
| 4. Wenmei Tan, Wei Shi, Sheng Ding, Zhengfeng Xie. (2021) Apigenin/furfurylamine-based bio-polyamide derivative: Benzoxazine-isocyanide mechanochemistry preparation and application in Pb(II) electrochemical probing. REACTIVE & FUNCTIONAL POLYMERS, [PMID:] [10.1016/j.reactfunctpolym.2021.104996] |
| 5. Xu Cao, Jiongzhao Li, Xudong Qian, Chuyue Li, Xiaogang Peng. (2025) Nucleation and Growth of Monodisperse and Monocrystalline Wurtzite CdSe Nanocrystals: Zinc Alkanoates as Neutral Ligands. Journal of the American Chemical Society, [PMID:39829123] [10.1021/jacs.4c15987] |
| 6. Juan Zhang, Yu Wei, Zhiquan Wu, Hang Gao, Wenchao Gao, Libo Li, Yang Chen, Honghong Chang. (2025) Efficient conversion of ethylene glycol to indole by hydrophobic modified Pt/Al2O3 catalyst. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, [PMID:] [10.1016/j.colsurfa.2025.139183] |
| 7. Wenbin Shi, Ping Yang, Xiao Zhang. (2026) Sr derived synthesis of CsPbX3 nanocrystals for extraordinary stable luminescence. APPLIED SURFACE SCIENCE, [PMID:] [10.1016/j.apsusc.2026.166325] |
| 8. Xiuting Wu, Tianjun Hu, Qingsong Shan, Hong Zhong, Yuqin Su, Linxiang Yang, Beichen Yuan, Junhui Dai, Yuhao Zhang, Qiangyu Dai, Xiaoming Li, Haibo Zeng. (2026) Ligand-Mediated Intergrain Isolation Strategy for Narrow-Emission Deep-Blue Perovskite Quantum Dot Light-Emitting Diodes. ACS Photonics, [PMID:] [10.1021/acsphotonics.6c00072] |
| 9. Wenbo Sui, Yijing Chen, Yingnan Wang, Han Feng, Chunhong Zhang, Lei Su, Lei Shang. (2026) Phosphorus-containing imidazole-based ionic liquid curing agents with different functional groups: synergistically enhancing flame-retardant and mechanical properties while extending processing time. PROGRESS IN ORGANIC COATINGS, [PMID:] [10.1016/j.porgcoat.2026.110110] |