1,3-二甲基-2-吡唑啉-5-酮，CAS 登记号 2749-59-9，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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1,3-Dimethyl-2-pyrazolin-5-one · CAS 2749-59-9 · C5H8N2O. UNII NS00028314.
| CAS Registry Number | 2749-59-9 |
|---|---|
| PubChem CID | 17673 |
| Molecular formula | C5H8N2O |
| IUPAC name | 2,5-dimethyl-4H-pyrazol-3-one |
| UNII (FDA) | NS00028314 |
| Molecular Weight | 112.13 |
|---|---|
| XLogP3 | -0.3 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 112.063662883 |
| Monoisotopic Mass | 112.063662883 |
| Topological Polar Surface Area | 32.7 |
| Heavy Atom Count | 8 |
| Formal Charge | 0 |
| Reported hazard statements | H302 (76%), H315 (24%), H319 (100%), H341 (76%), H412 (98%) |
|---|
H302 (76%): Harmful if swallowed [Warning Acute toxicity, oral]
H315 (24%): Causes skin irritation [Warning Skin corrosion/irritation]
2749-59-9; 3H-Pyrazol-3-one, 2,4-dihydro-2,5-dimethyl-; 2,4-DIHYDRO-2,5-DIMETHYL-3H-PYRAZOL-3-ONE; DTXSID4074641; NSC 304; EINECS 220-389-2; RefChem:505774; DTXCID2037685; 220-389-2; 1,3-Dimethyl-5-pyrazolone; 1,3-dimethyl-1H-pyrazol-5(4H)-one; 2,5-dimethyl-4H-pyrazol-3-one; 2,5-Dimethyl-2,4-dihydro-3H-pyrazol-3-one; 1,3-dimethyl-4,5-dihydro-1H-pyrazol-5-one; 1,3-Dimethylpyrazol-5(4H)-one; 1,3-Dimethyl-5-pyrazolinone
CAS 2749-59-9; molecular formula C5H8N2O; molecular weight — g/mol.
2749-59-9, 3H-Pyrazol-3-one, 2,4-dihydro-2,5-dimethyl-, 2,4-DIHYDRO-2,5-DIMETHYL-3H-PYRAZOL-3-ONE, DTXSID4074641, NSC 304, EINECS 220-389-2.
Hazard statements reported: H302, H315, H319, H341, H412.
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.