Determine the necessary mass, volume, or concentration for preparing a solution.
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Moligand™,≥98% Moligand™ for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Protected from light,Room temperature,Argon charged 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 8 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| ALogP | 1.4 |
|---|
| Pubchem Sid | 488179834 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488179834 |
| Canonical Smiles | CCN1C=C(C(=O)C2=C1N=C(C=C2)C)C(=O)O |
| IUPAC Name | 1-ethyl-7-methyl-4-oxo-1,8-naphthyridine-3-carboxylic acid |
| InChIKey | MHWLWQUZZRMNGJ-UHFFFAOYSA-N |
| INCHI | 1S/C12H12N2O3/c1-3-14-6-9(12(16)17)10(15)8-5-4-7(2)13-11(8)14/h4-6H,3H2,1-2H3,(H,16,17) |
| Isomeric SMILES | CCN1C=C(C(=O)C2=C1N=C(C=C2)C)C(=O)O |
| WGK Germany | 2 |
| RTECS | QN2885000 |
| UN Number | 3249 |
| Packing Group | II |
| Molecular Weight | 232.24 |
| Beilstein | 750515 |
| Reaxy-Rn | 750515 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=750515&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 | Organoheterocyclic compounds |
| Class | Diazanaphthalenes |
| Subclass | Naphthyridines |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Naphthyridine carboxylic acids and derivatives |
| Alternative Parents | Pyridinecarboxylic acids Methylpyridines Vinylogous amides Heteroaromatic compounds Monocarboxylic acids and derivatives Carboxylic acids Azacyclic compounds Organopnictogen compounds Organooxygen compounds Organonitrogen compounds Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | Naphthyridine carboxylic acid - Pyridine carboxylic acid - Pyridine carboxylic acid or derivatives - Methylpyridine - Pyridine - Heteroaromatic compound - Vinylogous amide - Azacycle - Monocarboxylic acid or derivatives - Carboxylic acid - Carboxylic acid derivative - Hydrocarbon derivative - Organopnictogen compound - Organic oxygen compound - Organooxygen compound - Organonitrogen compound - Organic nitrogen compound - Organic oxide - Aromatic heteropolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as naphthyridine carboxylic acids and derivatives. These are compounds containing a naphthyridine moiety, where one of the ring atoms bears a carboxylic acid group. |
| External Descriptors | 4-Quinolones |
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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 | Jun 11, 2026 | N104920 | |
| Certificate of Analysis | Jun 11, 2026 | N104920 | |
| Certificate of Analysis | Jun 03, 2026 | N104920 | |
| Certificate of Analysis | Jun 03, 2026 | N104920 | |
| Certificate of Analysis | Jun 03, 2026 | N104920 | |
| Certificate of Analysis | Nov 17, 2025 | N104920 | |
| Certificate of Analysis | Aug 01, 2025 | N104920 | |
| Certificate of Analysis | Dec 09, 2024 | N104920 | |
| Certificate of Analysis | Dec 09, 2024 | N104920 | |
| Certificate of Analysis | May 08, 2024 | N104920 | |
| Certificate of Analysis | May 06, 2023 | N104920 | |
| Certificate of Analysis | Jun 09, 2022 | N104920 | |
| Certificate of Analysis | Jun 09, 2022 | N104920 | |
| Certificate of Analysis | Jun 09, 2022 | N104920 |
| Solubility | Soluble in diethyl ether, acetone, methylene chloride, chloroform and methanol. Insoluble in water. |
|---|---|
| Sensitivity | Air sensitive; Light sensitive |
| Melt Point(°C) | 229-230°C |
| Molecular Weight | 232.230 g/mol |
| XLogP3 | 1.400 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 5 |
| Rotatable Bond Count | 2 |
| Exact Mass | 232.085 Da |
| Monoisotopic Mass | 232.085 Da |
| Topological Polar Surface Area | 70.500 Ų |
| Heavy Atom Count | 17 |
| Formal Charge | 0 |
| Complexity | 378.000 |
| 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. Xiaoyi Pu, Xin Wang, Youping Liu, Xin Di. (2023) A novel deep eutectic solvent-based ultrasound-assisted dispersive liquid–liquid microextraction coupled with high-performance liquid chromatography for the determination of quinolones in environmental water samples. MICROCHEMICAL JOURNAL, [PMID:] [10.1016/j.microc.2023.109374] |
| 2. Yuliya E. Tyutereva, Olga A. Snytnikova, Roman G. Fedunov, Vadim V. Yanshole, Victor F. Plyusnin, Jing Xu, Ivan P. Pozdnyakov. (2023) Direct UV photodegradation of nalidixic acid in aqueous solutions: A mechanistic study. CHEMOSPHERE, [PMID:37201608] [10.1016/j.chemosphere.2023.138952] |
| 3. Okon Johnson Esua, Da-Wen Sun, Clement Kehinde Ajani, Jun-Hu Cheng, Kevin M. Keener. (2022) Modelling of inactivation kinetics of Escherichia coli and Listeria monocytogenes on grass carp treated by combining ultrasound with plasma functionalized buffer. ULTRASONICS SONOCHEMISTRY, [PMID:35830785] [10.1016/j.ultsonch.2022.106086] |
| 4. Shang Wu, Yang Yang, Tingwei Wang, Jiadi Sun, Yinzhi Zhang, Jian Ji, Xiulan Sun. (2021) Effects of acid, alkaline, cold, and heat environmental stresses on the antibiotic resistance of the Salmonella enterica serovar Typhimurium. FOOD RESEARCH INTERNATIONAL, [PMID:34053552] [10.1016/j.foodres.2021.110359] |
| 5. Shiqing Zhou, Ling Li, Yangtao Wu, Shumin Zhu, Ningyuan Zhu, Lingjun Bu, Dionysios D. Dionysiou. (2020) UV365 induced elimination of contaminants of emerging concern in the presence of residual nitrite: Roles of reactive nitrogen species. WATER RESEARCH, [PMID:32375111] [10.1016/j.watres.2020.115829] |
| 6. Kang Yajing, Wang Yingying, Hou Bingbing, Wang Ruida, Ye Jiang, Zhu Xiaoyu, Wu Haizhen, Zhang Huizhan. (2019) AdpAlin, a Pleiotropic Transcriptional Regulator, Is Involved in the Cascade Regulation of Lincomycin Biosynthesis in Streptomyces lincolnensis. Frontiers in Microbiology, [PMID:31708899] [10.3389/fmicb.2019.02428] |
| 7. Sandip Mondal, Jianqiao Xu, Guosheng Chen, Siming Huang, Chuyu Huang, Li Yin, Gangfeng Ouyang. (2018) Solid-phase microextraction of antibiotics from fish muscle by using MIL-101(Cr)NH2-polyacrylonitrile fiber and their identification by liquid chromatography-tandem mass spectrometry. ANALYTICA CHIMICA ACTA, [PMID:30567665] [10.1016/j.aca.2018.09.060] |
| 8. Su Han Wang, Min Lin, Jing Liu, Jian Ping Wang, Ning Peng Wu. (2025) Discriminative determination of 15 fluoroquinolones in chicken muscle by Fe3O4@QepA based semi-homogeneous fluorescent array. MICROCHEMICAL JOURNAL, [PMID:] [10.1016/j.microc.2025.113051] |
Our grade selection guide covers purity, stabilizer status, and application suitability for all variants in our catalog.
View Moligand™ grade guide →