4,5-二甲基-1H-吡唑，CAS 登记号 2820-37-3，由济南圣和化工有限公司现货供应，可提供纯度 按批次COA提供(不公开发布) 的规格，下游主要用于有机化学品。支持样品与小批量试用，批量价格请联系我们获取，验收以批次 COA 为准。
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本页已列出 4,5-二甲基-1H-吡唑 的 CAS 号：2820-37-3，可与随货 COA 核对。
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4,5-dimethyl-1H-pyrazole · CAS 2820-37-3 · C5H8N2. UNII 7LF1K5QUJ0.
| CAS Registry Number | 2820-37-3 |
|---|---|
| PubChem CID | 137735 |
| Molecular formula | C5H8N2 |
| IUPAC name | 4,5-dimethyl-1H-pyrazole |
| UNII (FDA) | 7LF1K5QUJ0 |
| Molecular Weight | 96.13 |
|---|---|
| XLogP3 | 1 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 0 |
| Exact Mass | 96.068748264 |
| Monoisotopic Mass | 96.068748264 |
| Topological Polar Surface Area | 28.7 |
| Heavy Atom Count | 7 |
| Formal Charge | 0 |
| Reported hazard statements | H302, H318, H412, H361 (77.6%), H373 (82.1%) |
|---|
H302: Harmful if swallowed [Warning Acute toxicity, oral]
H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
3,4-Dimethyl-1H-pyrazole; 3,4-DIMETHYLPYRAZOLE; 3(5),4-Dimethylpyrazole; 1H-Pyrazole, 3,4-dimethyl-; 7LF1K5QUJ0; UNII-7LF1K5QUJ0; Pyrazole, 3,4-dimethyl-; CHEBI:148437; EC 429-130-1; DTXSID90182465; RefChem:91194; DTXCID00104956; 429-130-1; 632-592-7; VQTVFIMEENGCJA-UHFFFAOYSA-N; 2820-37-3
CAS 2820-37-3; molecular formula C5H8N2; molecular weight — g/mol.
3,4-Dimethyl-1H-pyrazole, 3,4-DIMETHYLPYRAZOLE, 3(5),4-Dimethylpyrazole, 1H-Pyrazole, 3,4-dimethyl-, 7LF1K5QUJ0, UNII-7LF1K5QUJ0.
Hazard statements reported: H302, H318, H412, H361, H373.
Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.