1-(4-β-羟乙基磺酰基苯基-)-3-甲基-5-吡唑啉酮，CAS 登记号 21951-34-8，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-(4-Beta-hydroxyethylsulfonylphenyl-)-3-methyl-5-pyrazolone · CAS 21951-34-8 · C12H14N2O4S. UNII A837J8M5FP.
| CAS Registry Number | 21951-34-8 |
|---|---|
| PubChem CID | 89114 |
| Molecular formula | C12H14N2O4S |
| IUPAC name | 2-[4-(2-hydroxyethylsulfonyl)phenyl]-5-methyl-4H-pyrazol-3-one |
| UNII (FDA) | A837J8M5FP |
| Molecular Weight | 282.32 |
|---|---|
| XLogP3 | -0.2 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 5 |
| Rotatable Bond Count | 4 |
| Exact Mass | 282.06742811 |
| Monoisotopic Mass | 282.06742811 |
| Topological Polar Surface Area | 95.4 |
| Heavy Atom Count | 19 |
| Formal Charge | 0 |
| GHS notification summary | 100% (9 / 9) |
|---|
| GHS notification summary | 100% (9 / 9) |
|---|
This chemical does not meet GHS hazard criteria for 100% (9 of 9) of all reports.
Reported as not meeting GHS hazard criteria by 9 of 9 companies. For more detailed information, please visit ECHA C&L website.
3H-Pyrazol-3-one, 2,4-dihydro-2-[4-[(2-hydroxyethyl)sulfonyl]phenyl]-5-methyl-; EINECS 244-678-8; DTXSID0066743; 2,4-Dihydro-2-(4-((2-hydroxyethyl)sulphonyl)phenyl)-5-methyl-3H-pyrazol-3-one; 2,4-Dihydro-2-[4-[(2-hydroxyethyl)sulphonyl]phenyl]-5-methyl-3H-pyrazol-3-one; 2-Pyrazolin-5-one, 1-(p-((2-hydroxyethyl)sulfonyl)phenyl)-3-methyl-; 3H-Pyrazol-3-one, 2,4-dihydro-2-(4-((2-hydroxyethyl)sulfonyl)phenyl)-5-methyl-; RefChem:505776; DTXCID8036576; 244-678-8; 21951-34-8; 2-[4-(2-hydroxyethylsulfonyl)phenyl]-5-methyl-4H-pyrazol-3-one; 1-(4-beta-Hydroxyethylsulfonylphenyl)-3-methyl-5-pyrazolone; 2,4-dihydro-2-[4-[(2-hydroxyethyl)sulfonyl]phenyl]-5-methyl-3h-pyrazol-3-one; A837J8M5FP; SCHEMBL3410994
CAS 21951-34-8; molecular formula C12H14N2O4S; molecular weight — g/mol.
3H-Pyrazol-3-one, 2,4-dihydro-2-[4-[(2-hydroxyethyl)sulfonyl]phenyl]-5-methyl-, EINECS 244-678-8, DTXSID0066743, 2,4-Dihydro-2-(4-((2-hydroxyethyl)sulphonyl)phenyl)-5-methyl-3H-pyrazol-3-one, 2,4-Dihydro-2-[4-[(2-hydroxyethyl)sulphonyl]phenyl]-5-methyl-3H-pyrazol-3-one, 2-Pyrazolin-5-one, 1-(p-((2-hydroxyethyl)sulfonyl)phenyl)-3-methyl-.
100% of GHS notifications report no hazard classification (9 of 9).
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.