≥98%(HPLC) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature 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 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Pubchem Sid | 488183052 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488183052 |
| Canonical Smiles | C1=C(C=NN1)Cl |
| IUPAC Name | 4-chloro-1H-pyrazole |
| InChIKey | BADSZRMNXWLUKO-UHFFFAOYSA-N |
| INCHI | 1S/C3H3ClN2/c4-3-1-5-6-2-3/h1-2H,(H,5,6) |
| Isomeric SMILES | C1=C(C=NN1)Cl |
| RTECS | UQ6445000 |
| Molecular Weight | 102.52 |
| Reaxy-Rn | 106355 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=106355&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 | Organohalogen compounds |
| Class | Aryl halides |
| Subclass | Aryl chlorides |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Aryl chlorides |
| Alternative Parents | Pyrazoles Heteroaromatic compounds Azacyclic compounds Organopnictogen compounds Organonitrogen compounds Organochlorides Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteromonocyclic compounds |
| Substituents | Aryl chloride - Heteroaromatic compound - Pyrazole - Azole - Azacycle - Organoheterocyclic compound - Organic nitrogen compound - Organopnictogen compound - Hydrocarbon derivative - Organonitrogen compound - Organochloride - Aromatic heteromonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as aryl chlorides. These are organic compounds containing the acyl chloride functional 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 |
|---|---|---|---|
 K2223218 | Certificate of Analysis | Sep 03, 2026 | C153799 |
| J2121388 | Certificate of Analysis | Aug 11, 2025 | C153799 |
| J2121390 | Certificate of Analysis | Aug 11, 2025 | C153799 |
| J1720096 | Certificate of Analysis | May 12, 2025 | C153799 |
| H2507319 | Certificate of Analysis | May 08, 2025 | C153799 |
| H2507320 | Certificate of Analysis | May 08, 2025 | C153799 |
| D2001180 | Certificate of Analysis | Jan 04, 2024 | C153799 |
| A2305093 | Certificate of Analysis | Jan 17, 2023 | C153799 |
| B2522183 | Certificate of Analysis | May 24, 2021 | C153799 |
| F2307293 | Certificate of Analysis | May 24, 2021 | C153799 |
| F2309141 | Certificate of Analysis | May 24, 2021 | C153799 |
| F2309143 | Certificate of Analysis | May 24, 2021 | C153799 |
| L2306058 | Certificate of Analysis | May 24, 2021 | C153799 |
| Boil Point(°C) | 220°C |
|---|---|
| Melt Point(°C) | 77 °C |
| Molecular Weight | 102.520 g/mol |
| XLogP3 | 0.200 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 0 |
| Exact Mass | 101.998 Da |
| Monoisotopic Mass | 101.998 Da |
| Topological Polar Surface Area | 28.700 Ų |
| Heavy Atom Count | 6 |
| Formal Charge | 0 |
| Complexity | 48.100 |
| 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 |
| 1. Guo-Shan Zhu, Ren-Jie Hui, Jun Hu. (2025) Microdroplet Stabilization Enabled Direct Mass Spectrometric Identification of Electrogenerated Transient Carbocation Intermediates. Advanced Science, [PMID:41355586] [10.1002/advs.202518157] |
