Determine the necessary mass, volume, or concentration for preparing a solution.
≥98% 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 38 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
2H-1,2,3-triazole is tautomeric form of 1H-1,2,3-triazole. 1H-1,2,3-triazole effectively promotes the proton conduction in polymer electrolyte membranes via an intermolecular proton-transfer mechanism.
| Pubchem Sid | 488183942 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488183942 |
| Canonical Smiles | c1c[nH]nn1 |
| IUPAC Name | 2H-triazole |
| InChIKey | QWENRTYMTSOGBR-UHFFFAOYSA-N |
| INCHI | 1S/C2H3N3/c1-2-4-5-3-1/h1-2H,(H,3,4,5) |
| Isomeric SMILES | C1=NNN=C1 |
| WGK Germany | 3 |
| Alternate CAS | 288-35-7 |
| PubChem CID | 67516 |
| Molecular Weight | 69.07 |
| Beilstein | 26,11 |
| Reaxy-Rn | 104766 |
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 | Azoles |
| Subclass | Triazoles |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Triazoles |
| Alternative Parents | Heteroaromatic compounds Azacyclic compounds Organopnictogen compounds Organonitrogen compounds Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteromonocyclic compounds |
| Substituents | Heteroaromatic compound - 1,2,3-triazole - Azacycle - Organic nitrogen compound - Organopnictogen compound - Hydrocarbon derivative - Organonitrogen compound - Aromatic heteromonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as triazoles. These are compounds containing a five-member aromatic ring of two carbon atoms and three nitrogen atoms. |
| External Descriptors | 1,2,3-triazole |
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 15, 2026 | H157233 | |
| Certificate of Analysis | Jun 15, 2026 | H157233 | |
| Certificate of Analysis | Jun 15, 2026 | H157233 | |
| Certificate of Analysis | Apr 29, 2026 | H157233 | |
| Certificate of Analysis | Apr 29, 2026 | H157233 | |
| Certificate of Analysis | Apr 29, 2026 | H157233 | |
| Certificate of Analysis | Apr 29, 2026 | H157233 | |
| Certificate of Analysis | Dec 12, 2025 | H157233 | |
| Certificate of Analysis | Jun 09, 2025 | H157233 | |
| Certificate of Analysis | Jun 09, 2025 | H157233 | |
| Certificate of Analysis | Jun 09, 2025 | H157233 | |
| Certificate of Analysis | Jun 09, 2025 | H157233 | |
| Certificate of Analysis | Jun 09, 2025 | H157233 | |
| Certificate of Analysis | Dec 16, 2024 | H157233 | |
| Certificate of Analysis | Dec 16, 2024 | H157233 | |
| Certificate of Analysis | Dec 16, 2024 | H157233 | |
| Certificate of Analysis | Dec 05, 2024 | H157233 | |
| Certificate of Analysis | Nov 08, 2024 | H157233 | |
| Certificate of Analysis | Nov 08, 2024 | H157233 | |
| Certificate of Analysis | Nov 08, 2024 | H157233 | |
| Certificate of Analysis | Nov 08, 2024 | H157233 | |
| Certificate of Analysis | Jun 19, 2024 | H157233 | |
| Certificate of Analysis | Jun 17, 2024 | H157233 | |
| Certificate of Analysis | Jun 17, 2024 | H157233 | |
| Certificate of Analysis | Mar 07, 2024 | H157233 | |
| Certificate of Analysis | Mar 07, 2024 | H157233 | |
| Certificate of Analysis | Mar 07, 2024 | H157233 | |
| Certificate of Analysis | Jan 10, 2024 | H157233 | |
| Certificate of Analysis | Jan 10, 2024 | H157233 | |
| Certificate of Analysis | Jan 10, 2024 | H157233 | |
| Certificate of Analysis | Jan 10, 2024 | H157233 | |
| Certificate of Analysis | Jan 10, 2024 | H157233 | |
| Certificate of Analysis | Jan 10, 2024 | H157233 | |
| Certificate of Analysis | Oct 21, 2023 | H157233 | |
| Certificate of Analysis | Oct 21, 2023 | H157233 | |
| Certificate of Analysis | Oct 21, 2023 | H157233 | |
| Certificate of Analysis | Oct 21, 2023 | H157233 | |
| Certificate of Analysis | Oct 21, 2023 | H157233 | |
| Certificate of Analysis | Jan 17, 2023 | H157233 | |
| Certificate of Analysis | Jan 17, 2023 | H157233 | |
| Certificate of Analysis | Sep 16, 2022 | H157233 | |
| Certificate of Analysis | Aug 06, 2022 | H157233 | |
| Certificate of Analysis | Aug 06, 2022 | H157233 | |
| Certificate of Analysis | Aug 06, 2022 | H157233 | |
| Certificate of Analysis | Aug 06, 2022 | H157233 | |
| Certificate of Analysis | Jun 02, 2022 | H157233 | |
| Certificate of Analysis | Jun 02, 2022 | H157233 | |
| Certificate of Analysis | Jun 02, 2022 | H157233 | |
| Certificate of Analysis | Jan 12, 2022 | H157233 | |
| Certificate of Analysis | Jan 12, 2022 | H157233 | |
| Certificate of Analysis | Jan 12, 2022 | H157233 | |
| Certificate of Analysis | Jan 12, 2022 | H157233 |
| Solubility | Solubility in Methanol almost transparency;Fully miscible in water. |
|---|---|
| Refractive Index | 1.498 |
| Flash Point(°F) | 224.6 °F |
| Flash Point(°C) | 107 °C |
| Boil Point(°C) | 203 °C/752 mmHg |
| Melt Point(°C) | 23-25°C |
| Molecular Weight | 69.070 g/mol |
| XLogP3 | -0.300 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 69.0327 Da |
| Monoisotopic Mass | 69.0327 Da |
| Topological Polar Surface Area | 41.600 Ų |
| Heavy Atom Count | 5 |
| Formal Charge | 0 |
| Complexity | 24.100 |
| 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 |
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| 4. Jiajie Cao, Xiaohui Wu, Yongyin Chen, Zhangxin Chen, Ruoruo Jiang, Yanying Zhao, Qinghua Tian, Dan Chen, Shengwei Xiao, Binbin Yu, Yanxian Jin. (2023) Electronic regulation over Pd nanoparticles: One-pot synthesis of B, N Co-doping MXene-supported Pd catalyst for efficient ethanol oxidation. JOURNAL OF ALLOYS AND COMPOUNDS, [PMID:] [10.1016/j.jallcom.2023.170240] |
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| 20. Bihong Lv, Junhai Wu, Chengrui Lin, Zuoming Zhou, Guohua Jing. (2019) Kinetic and heat duty study of aprotic heterocyclic anion-based dual functionalized ionic liquid solutions for carbon capture. FUEL, [PMID:] [10.1016/j.fuel.2019.116676] |
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