吡咯酸，CAS 登记号 550-74-3，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。
有机化学品
每批随货提供 COA；可按需提供 MSDS 及技术文件。邮件注明产品名称与 CAS 号，一个工作日内回复报价。
本页已列出 吡咯酸 的 CAS 号：550-74-3，可与随货 COA 核对。
常见纯度为 按批次COA提供(不公开发布)，包装形式为 按订单/批次确认(不公开发布)，特殊规格可在询价时说明。
主要涉及有机化学品。
来信 info@591daili.com 或 WhatsApp 联系，提供产品名称、CAS 号与数量，确认价格与交期后即可安排发货，验收以批次 COA 为准。
Picrolonic Acid · CAS 550-74-3 · C10H8N4O5. UNII AW40R29U5B.
| CAS Registry Number | 550-74-3 |
|---|---|
| PubChem CID | 68369 |
| Molecular formula | C10H8N4O5 |
| IUPAC name | 5-methyl-4-nitro-2-(4-nitrophenyl)-4H-pyrazol-3-one |
| UNII (FDA) | AW40R29U5B |
| Molecular Weight | 264.19 |
|---|---|
| XLogP3 | 1.2 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 6 |
| Rotatable Bond Count | 1 |
| Exact Mass | 264.04946937 |
| Monoisotopic Mass | 264.04946937 |
| Topological Polar Surface Area | 124 |
| Heavy Atom Count | 19 |
| Formal Charge | 0 |
| Reported hazard statements | H315 (100%), H319 (100%), H335 (97.8%) |
|---|
H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
Picrolonic acid; 550-74-3; 3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-4-nitro-2-(4-nitrophenyl)-; AW40R29U5B; DTXSID50862175; NSC-5049; RefChem:174192; 3-Methyl-4-nitro-1-(4-nitrophenyl)-5-pyrazolone; DTXCID90810978; 208-986-6; 3-Methyl-4-nitro-1-(4-nitrophenyl)-1H-pyrazol-5(4H)-one; 5-methyl-4-nitro-2-(4-nitrophenyl)-4H-pyrazol-3-one; 3-Methyl-4-nitro-1-(p-nitrophenyl)-2-pyrazolin-5-one; 3-methyl-4-nitro-1-(4-nitrophenyl)-4,5-dihydro-1H-pyrazol-5-one; NSC5049; 2-Pyrazolin-5-one, 3-methyl-4-nitro-1-(p-nitrophenyl)-
CAS 550-74-3; molecular formula C10H8N4O5; molecular weight — g/mol.
Picrolonic acid, 550-74-3, 3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-4-nitro-2-(4-nitrophenyl)-, AW40R29U5B, DTXSID50862175, NSC-5049.
Hazard statements reported: H315, H319, H335.
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.