4919-33-9

• 常用中文名：4-乙氧基苯乙酸
• 常用英文名：4-ethoxyphenylacetic acid
• CAS号：4919-33-9
• 分子式：C₁₀H₁₂O₃
• 分子量：180.201
• 相关类别： 化学农药原药 杀虫剂中间体
• 发布时间：2018-08-09 15:19:33
• 更新时间：2024-01-10 22:43:07

• 对乙氧基苯乙酸是拟除虫菊酯乙氰菊酯的中间体。

名称

• 中文名: 4-乙基氧丙基乙酸酯
• 英文名: 4-ethoxyphenylacetic acid
• 中文别名: 4-乙基氧丙基乙酸; 4-乙氧基苯乙酸; 4-乙氧基苯基乙酸
• 英文别名: EINECS 225-545-3; 2-(4-Ethoxyphenyl)acetic acid; 4-ethoxyphenylacetic acid; Benzeneacetic acid, 4-ethoxy-; (4-Ethoxyphenyl)acetic acid; MFCD00004346

物化性质

• 密度: 1.1±0.1 g/cm3
• 沸点: 318.5±17.0 °C at 760 mmHg
• 熔点: 87-90 °C(lit.)
• 分子式: C₁₀H₁₂O₃
• 分子量: 180.201
• 闪点: 125.8±14.4 °C
• 精确质量: 180.078644
• PSA: 46.53000
• LogP: 1.95
• 外观性状: 白色晶体粉末
• 蒸汽压: 0.0±0.7 mmHg at 25°C
• 折射率: 1.531
• 储存条件:

  常温，避光，阴凉干燥处，密封保存

• 稳定性:

  常温常压下稳定，本品为白色固体，m.p.87～90℃，不溶于水，溶于苯、甲苯。

• 分子结构:

  1、 摩尔折射率：48.67

  2、 摩尔体积（m³/mol）：157.3

  3、 等张比容（90.2K）：402.1

  4、 表面张力（dyne/cm）：42.6

  5、 极化率（10 ^-24cm ³）：19.29

• 计算化学:

  1、 疏水参数计算参考值（XlogP）：1.9

  2、 氢键供体数量：1

  3、 氢键受体数量：3

  4、 可旋转化学键数量：4

  5、 拓扑分子极性表面积（TPSA）：46.5

  6、 重原子数量：13

  7、 表面电荷：0

  8、 复杂度：160

  9、 同位素原子数量：0

  10、 确定原子立构中心数量：0

  11、 不确定原子立构中心数量：0

  12、 确定化学键立构中心数量：0

  13、 不确定化学键立构中心数量：0

  14、 共价键单元数量：1

• 更多:

  1. 性状：白色粉末

  2. 密度：不确定

  3. 相对蒸汽密度（g/mL,空气=1）：不确定

  4. 熔点（ºC）：87-90

  5. 沸点（ºC）：不确定

  6. 沸点（ºC,3mmHg）：不确定

  7. 折射率（nD20）：不确定

  8. 闪点（ºC）：不确定

  9. 比旋光度（º, C=0.25, MeOH）：不确定

  10. 自燃点或引燃温度（ºC）：不确定

  11. 蒸气压（kPa,25ºC）：不确定

  12. 饱和蒸气压（kPa,60ºC）：不确定

  13. 燃烧热（KJ/mol）：不确定

  14. 临界温度（ºC）：不确定

  15. 临界压力（KPa）：不确定

  16. 油水（辛醇/水）分配系数的对数值：不确定

  17. 爆炸上限（%,V/V）：不确定

  18. 爆炸下限（%,V/V）：不确定

  19. 溶解性：不确定

MSDS

Name: 4-Ethoxyphenylacetic acid 98% Material Safety Data Sheet Synonym: Benzeneacetic acid, 4-ethoxy CAS: 4919-33-9 Section 1 - Chemical Product MSDS Name:4-Ethoxyphenylacetic acid 98% Material Safety Data Sheet Synonym:Benzeneacetic acid, 4-ethoxy Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 4919-33-9 Benzeneacetic acid, 4-ethoxy- 98 225-545-3 Hazard Symbols: None Listed. 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 agent most appropriate to extinguish fire. 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: Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation. Section 7 - HANDLING and STORAGE Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. 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# 4919-33-9: 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: Powder Color: slightly beige Odor: none reported pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: Not available. Freezing/Melting Point: 87.00 - 90.00 deg C Autoignition Temperature: Not applicable. Flash Point: Not applicable. Explosion Limits, lower: Not available. Explosion Limits, upper: Not available. Decomposition Temperature: Not available. Solubility in water: Not available. Specific Gravity/Density: Not available. Molecular Formula: C10H12O3 Molecular Weight: 180.20 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Stable under normal temperatures and pressures. Conditions to Avoid: Incompatible materials, strong oxidants. Incompatibilities with Other Materials: Oxidizing 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# 4919-33-9 unlisted. LD50/LC50: Not available. Carcinogenicity: Benzeneacetic acid, 4-ethoxy- - 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# 4919-33-9: No information available. Canada CAS# 4919-33-9 is listed on Canada's NDSL List. CAS# 4919-33-9 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 4919-33-9 is listed on the TSCA inventory. SECTION 16 - ADDITIONAL INFORMATION N/A

毒性和生态

毒理学数据: 主要的刺激性影响 在皮肤上面：刺激皮肤和粘膜 在眼睛上面：刺激的影响 致敏作用：没有已知的敏化影响 生态学数据: 通常对水是不危害的，若无政府许可，勿将材料排入周围环境

安全

• 危害码 (欧洲): Xn: Harmful;
• 风险声明 (欧洲): R36/37/38
• 安全声明 (欧洲): S37/39-S26
• WGK德国: 3
• 海关编码: 2918990090

上下游产品

上游产品  10
40784-88-1 64-67-5 156-38-7 622-60-6
4947-83-5 6775-77-5 14191-95-8 1197-55-3
75-03-6 860368-91-8
下游产品  4
40784-88-1 33468-13-2 33468-15-4 55154-71-7

制备

其制备方法是在反应器中加入对乙氧基氰苄、氢氧化钾和乙二醇，加热搅拌下反应，反应结束后，冷却到室温，酸化，加入水和苯，分层，油层蒸馏去苯，得到对乙氧基苯乙酸。

海关

海关编码	2918990090
中文概述	2918990090. 其他含其他附加含氧基羧酸（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:13.0%. 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	2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%