2-氰基乙酰乙酸乙酯，CAS 登记号 634-55-9，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。
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 2-氰基乙酰乙酸乙酯 的 CAS 号：634-55-9，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。
Ethyl 2-cyanoacetoacetate · CAS 634-55-9 · C7H9NO3. UNII NS00003250.
| CAS Registry Number | 634-55-9 |
|---|---|
| PubChem CID | 136455 |
| Molecular formula | C7H9NO3 |
| IUPAC name | ethyl 2-cyano-3-oxobutanoate |
| UNII (FDA) | NS00003250 |
| Molecular Weight | 155.15 |
|---|---|
| XLogP3 | 0.3 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 4 |
| Exact Mass | 155.058243149 |
| Monoisotopic Mass | 155.058243149 |
| Topological Polar Surface Area | 67.2 |
| Heavy Atom Count | 11 |
| Formal Charge | 0 |
| Reported hazard statements | H301 (66.7%), H302 (33.3%), H311 (66.7%), H318 (16.7%), H319 (16.7%), H330 (66.7%) |
|---|
H301 (66.7%): Toxic if swallowed [Danger Acute toxicity, oral]
H302 (33.3%): Harmful if swallowed [Warning Acute toxicity, oral]
634-55-9; Ethyl 2-cyanoacetoacetate; Ethyl 2-cyano-3-oxobutanoate; Butanoic acid, 2-cyano-3-oxo-, ethyl ester; Ethyl alpha-cyanoacetoacetate; 2-cyanoacetoacetic acid ethyl ester; DTXSID40979569; CHEBI:51924; EC 700-172-3; RefChem:594343; DTXCID601034848; 700-172-3; ETHYL 2-ACETYLCYANOACETATE; Ethyl2-acetylcyanoacetate; MFCD00043487; Ethyl a-cyanoacetoacetate
CAS 634-55-9; molecular formula C7H9NO3; molecular weight — g/mol.
634-55-9, Ethyl 2-cyanoacetoacetate, Ethyl 2-cyano-3-oxobutanoate, Butanoic acid, 2-cyano-3-oxo-, ethyl ester, Ethyl alpha-cyanoacetoacetate, 2-cyanoacetoacetic acid ethyl ester.
Hazard statements reported: H301, H302, H311, H318, H319.
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.