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| 中文名 | 乙酰丙酮酸乙酯 |
|---|---|
| 英文名 | Ethyl 2,4-dioxovalerate |
| 中文别名 |
丙酮草酸乙酯
2,4-二酮戊酸乙酯 |
| 英文别名 |
Ethyl acetopyruvate
EINECS 210-447-5 Ethyl 2,4-dioxovalerate Ethyl 2,4-dioxopentanoate Pentanoic acid, 2,4-dioxo-, ethyl ester MFCD00009124 |
| 密度 | 1.1±0.1 g/cm3 |
|---|---|
| 沸点 | 214.7±13.0 °C at 760 mmHg |
| 熔点 | 16-18 °C(lit.) |
| 分子式 | C7H10O4 |
| 分子量 | 158.152 |
| 闪点 | 85.8±19.9 °C |
| 精确质量 | 158.057907 |
| PSA | 60.44000 |
| LogP | -0.19 |
| 外观性状 | 透明非常淡黄色液体 |
| 蒸汽压 | 0.2±0.4 mmHg at 25°C |
| 折射率 | 1.426 |
| 储存条件 | 贮存： 将密器密封，储存密封的主藏器内，并放在阴凉， 干爽的位置。 |
| 稳定性 | 性质与稳定性： 常温常压下，或不分解产物。 |
| 分子结构 | 五、分子性质数据： 1、 摩尔折射率：36.31 2、 摩尔体积（cm3/mol）：141.8 3、 等张比容（90.2K）：345.5 4、 表面张力（dyne/cm）：35.2 5、 极化率（10-24cm3）：14.39 |
| 计算化学 | 1.疏水参数计算参考值（XlogP）:0.2 2.氢键供体数量:0 3.氢键受体数量:4 4.可旋转化学键数量:5 5.互变异构体数量:5 6.拓扑分子极性表面积60.4 7.重原子数量:11 8.表面电荷:0 9.复杂度:183 10.同位素原子数量:0 11.确定原子立构中心数量:0 12.不确定原子立构中心数量:0 13.确定化学键立构中心数量:0 14.不确定化学键立构中心数量:0 15.共价键单元数量:1 |
| 更多 | 一、物性数据 1. 熔点（ºC）：16-18ºC 2. 沸点（ºC,常压）：101-103°C12mm Hg(lit.) 3. 密度：1.126g/mLat 25°C(lit. 4. 折射率：n20/D 1.474(lit.) 5. 闪点（ºC）：230°F |
Synonym:None Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
Risk Phrases: None Listed. Section 3 - HAZARDS IDENTIFICATION EMERGENCY OVERVIEW
The toxicological properties of this material have not been fully investigated. Potential Health Effects Eye: May cause eye irritation. Skin: May cause skin irritation. Ingestion: May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated. Inhalation: May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. Chronic: No information found. Section 4 - FIRST AID MEASURES Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. Skin: Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Ingestion: Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. Inhalation: Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. Notes to Physician: Section 5 - FIRE FIGHTING MEASURES General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or appropriate foam. Section 6 - ACCIDENTAL RELEASE MEASURES General Information: Use proper personal protective equipment as indicated in Section 8. Spills/Leaks: Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Provide ventilation. Section 7 - HANDLING and STORAGE Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Storage: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION Engineering Controls: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low. Exposure Limits CAS# 615-79-2: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. Respirators: A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use. Section 9 - PHYSICAL AND CHEMICAL PROPERTIES Physical State: Liquid Color: clear very slight yellow Odor: none reported pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: 101 - 103 deg C @ 12.00mmHg Freezing/Melting Point: 16.00 - 18.00 deg C Autoignition Temperature: Not applicable. Flash Point: > 112 deg C (> 233.60 deg F) Explosion Limits, lower: Not available. Explosion Limits, upper: Not available. Decomposition Temperature: Not available. Solubility in water: Not available. Specific Gravity/Density: 1.1260g/cm3 Molecular Formula: C7H10O4 Molecular Weight: 158.15 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Stable under normal temperatures and pressures. Conditions to Avoid: Incompatible materials, strong oxidants. Incompatibilities with Other Materials: Acids, bases, oxidizing agents, reducing agents. Hazardous Decomposition Products: Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide. Hazardous Polymerization: Has not been reported Section 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 615-79-2 unlisted. LD50/LC50: Not available. Carcinogenicity: Ethyl 2,4-dioxovalerate - Not listed by ACGIH, IARC, or NTP. Section 12 - ECOLOGICAL INFORMATION Section 13 - DISPOSAL CONSIDERATIONS Dispose of in a manner consistent with federal, state, and local regulations. Section 14 - TRANSPORT INFORMATION IATA Not regulated as a hazardous material. IMO Not regulated as a hazardous material. RID/ADR Not regulated as a hazardous material. Section 15 - REGULATORY INFORMATION European/International Regulations European Labeling in Accordance with EC Directives Hazard Symbols: Not available. Risk Phrases: Safety Phrases: S 24/25 Avoid contact with skin and eyes. WGK (Water Danger/Protection) CAS# 615-79-2: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 615-79-2 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 615-79-2 is not listed on the TSCA inventory. It is for research and development use only. SECTION 16 - ADDITIONAL INFORMATION N/A |
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生态学数据: 三、生态学数据： 1、其它有害作用：该物质对环境可能有危害，对水体应给予特别注意。
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| 个人防护装备 | Eyeshields;Gloves |
|---|---|
| 危害码 (欧洲) | Xn |
| 风险声明 (欧洲) | R22 |
| 安全声明 (欧洲) | S23-S24/25 |
| 危险品运输编码 | NONH for all modes of transport |
| WGK德国 | 3 |
| 海关编码 | 29183000 |
|
~87%
615-79-2 |
| 文献：Kraem, Jihene Ben; Amri, Hassen Synthetic Communications, 2013 , vol. 43, # 1 p. 110 - 117 |
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| 文献：US5244903 A1, ; |
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| 文献：US6172230 B2, ; |
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| 文献：Chemische Berichte, , vol. 20, p. 2188 |
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详细
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| 文献：Justus Liebigs Annalen der Chemie, , vol. 569, p. 17,27 |
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| 文献：Justus Liebigs Annalen der Chemie, , vol. 569, p. 17,27 |
| 上游产品 7 | |
|---|---|
| 下游产品 10 | |
| 海关编码 | 2918300090 |
|---|---|
| 中文概述 | 2918300090 其他含醛基或酮基不含其他含氧基羧酸（包括酸酐、酰卤化物、过氧化物和过氧酸及该税号的衍生物）. 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:6.5% 普通关税:30.0% |
| 申报要素 | 品名, 成分含量, 用途 |
| Summary | 2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
于装有搅拌器、回流冷凝器、滴液漏斗的反应瓶中，加入无水乙醇2L，搅拌下分批加入金属钠63g（2.7mol），待钠全部反应完后，冷至室温。滴加由草酸二乙酯（3）365g（2.5mol）和丙酮（2）145g（2.5mol）的混合液，约3h加完
①。加完后升至40℃，继续搅拌反应1h，生成黄色粘稠物。冷却，抽滤，用乙醇洗涤，得到钠盐（4）
②。将钠盐加入1.3g冰水中，搅拌下慢慢加入预先冷冻的稀硫酸中（100mL浓硫酸与200mL水配制），控制反应液温度在0～5℃，调至pH3～4，并继续搅拌10min，直至黄色钠盐消失。用苯提取（300mL×3），合并提取液，水洗。常压蒸馏回收苯，而后减压蒸馏，收集117～121℃/308kPa的馏分，得乙酰丙酮酸乙酯（1）
③240g，收率61%。注：①反应初期有白色沉淀生成，而后逐渐呈现黄色，进一步加深，最后成黄色，并且反应体系逐渐变稠。②抽滤很慢，最后采用离心的办法。③产品稳定性差，贮存时会自行分解。