51947-45-6
51947-45-6结构式
- 常用中文名：4-羟苄基丙二酸二甲酯
- 常用英文名：4-hydroxy benzylidene malonic acid dimethyl ester
- CAS号：51947-45-6
- 分子式：C12H12O5
- 分子量：236.22100
- 相关类别： 化学试剂 有机试剂 酯类 甲酯类化合物
- 发布时间：2018-07-06 12:51:10
- 更新时间：2024-01-11 16:16:02
| 中文名 | 4-羟苄基丙二酸二甲酯 |
|---|---|
| 英文名 | dimethyl 2-[(4-hydroxyphenyl)methylidene]propanedioate |
| 中文别名 | 4-羟基二苄基丙二酸二甲酯 |
| 英文别名 |
dimethyl para-hydroxybenzalmalonate
dimethyl 4-hydroxybenzylidenemalonate EINECS 257-539-1 4-hydroxybenzylidene-malonic acid dimethyl ester |
| 密度 | 1.276g/cm3 |
|---|---|
| 沸点 | 328.7ºC at 760mmHg |
| 熔点 | 155-160ºC |
| 分子式 | C12H12O5 |
| 分子量 | 236.22100 |
| 闪点 | 121.5ºC |
| 精确质量 | 236.06800 |
| PSA | 72.83000 |
| LogP | 1.12160 |
| 折射率 | 1.576 |
| 储存条件 | 密闭于阴凉干燥环境中 |
| 稳定性 | 遵照规定使用和储存则不会分解。 |
| 分子结构 | 1、 摩尔折射率：61.31 2、 摩尔体积（m3/mol）：185.1 3、 等张比容（90.2K）：490.2 4、 表面张力（dyne/cm）：49.1 5、 极化率（10 -24cm 3）：24.30 |
| 计算化学 | 1.疏水参数计算参考值（XlogP）:无 2.氢键供体数量:1 3.氢键受体数量:5 4.可旋转化学键数量:5 5.互变异构体数量:4 6.拓扑分子极性表面积72.8 7.重原子数量:17 8.表面电荷:0 9.复杂度:295 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 | 1. 性状：无可用 2. 密度（g/mL,25/4℃）：无可用 3. 相对蒸汽密度（g/mL,空气=1）：无可用 4. 熔点（ºC）：155-160 5. 沸点（ºC,常压）：无可用 6. 沸点（ºC,5.2kPa）：无可用 7. 折射率：无可用 8. 闪点（ºC）：无可用 9. 比旋光度（º）：无可用 10. 自燃点或引燃温度（ºC）：无可用 11. 蒸气压（kPa,25ºC）：无可用 12. 饱和蒸气压（kPa,60ºC）：无可用 13. 燃烧热（KJ/mol）：无可用 14. 临界温度（ºC）：无可用 15. 临界压力（KPa）：无可用 16. 油水（辛醇/水）分配系数的对数值：无可用 17. 爆炸上限（%,V/V）：无可用 18. 爆炸下限（%,V/V）：无可用 19. 溶解性：无可用 |
Synonym:2-[(4-Hydroxyphenyl)methylene] Propanedioic Acid Dimethyl Ester; Dimethyl 2-[(4-Hydroxyphenyl)methylene]propane Dioate 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. 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: Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up, then place into a suitable 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. Keep container tightly closed. 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# 51947-45-6: 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: Solid Color: yellow-green Odor: None reported. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: Not available. Freezing/Melting Point: 157.00 - 160.00 deg C Autoignition Temperature: Not applicable. Flash Point: Not applicable. Explosion Limits, lower: Not available. Explosion Limits, upper: Not available. Decomposition Temperature: Solubility in water: <0.1% (20 c) Specific Gravity/Density: Molecular Formula: C12H12O5 Molecular Weight: 236.22 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Stable under normal temperatures and pressures. Conditions to Avoid: Incompatible materials, dust generation, excess heat, 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# 51947-45-6 unlisted. LD50/LC50: Not available. Carcinogenicity: 4-Hydroxy Benzylidene Malonic Acid Dimethyl Ester - 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. S 28A After contact with skin, wash immediately with plenty of water. S 37 Wear suitable gloves. S 45 In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). WGK (Water Danger/Protection) CAS# 51947-45-6: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 51947-45-6 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 51947-45-6 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: 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。
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| 安全声明 (欧洲) | S24/25 |
|---|---|
| 海关编码 | 2918290000 |
|
~99%
51947-45-6 |
| 文献：Japan Tobacco Inc. Patent: US6248897 B1, 2001 ; |
|
~84%
51947-45-6 |
| 文献：Wang; Ma, YuDao; Zuo, BoJun Synthetic Communications, 1997 , vol. 27, # 23 p. 4107 - 4110 |
|
~89%
51947-45-6 |
| 文献：Sidhu, Anjali; Rai, Mangat Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2009 , vol. 48, # 5 p. 735 - 736 |
| 海关编码 | 2918290000 |
|---|---|
| 中文概述 | 2918290000 其他含酚基但不含其他含氧基羧酸及其酸酐、酰卤化物、过氧化物和过氧酸及它们的衍生物。监管条件:AB(入境货物通关单,出境货物通关单)。增值税率:17.0%。退税率:9.0%。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 |
| 监管条件 | A.入境货物通关单 B.出境货物通关单 |
| 检验检疫 | R.进口食品卫生监督检验 S.出口食品卫生监督检验 |
| Summary | HS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) VAT:17.0% MFN tariff:6.5% General tariff:30.0% |