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| 中文名 | 正二十四烷 |
|---|---|
| 英文名 | tetracosane |
| 中文别名 | 二十四烷 |
| 英文别名 |
tetracosan acid
n-tetracosane UNII-YQ5H1M1D7I tetraeicosane EINECS 211-474-5 MFCD00009352 Tetracosane Tricosane,methyl T8752_ALDRICH |
| 描述 | 四碳烷(烷C24)是一种天然产物,可在金色Acrostichum aureum中找到。四碳烷具有细胞毒性并诱导细胞凋亡。四碳烷具有研究消化性溃疡的潜力[1]。 |
|---|---|
| 相关类别 | |
| 体外研究 | 十四烷(0-250µM；24,48小时)表现出细胞毒性并以时间依赖性方式诱导细胞凋亡[1]。 细胞毒性测定[1]细胞系：HT-29、MDA-MB-231、AGS细胞浓度：0-250µM培养时间：结果：显示HT-29细胞的细胞毒性,IC50分别为128.7、>250、>250µM。凋亡分析[1]细胞系：AGS细胞浓度：500µg/mL培养时间：24,48小时结果：诱导凋亡,24小时晚期凋亡率为10%,48小时后凋亡率增至20%。 |
| 参考文献 |
| 密度 | 0.8±0.1 g/cm3 |
|---|---|
| 沸点 | 391.1±5.0 °C at 760 mmHg |
| 熔点 | 49-52 °C(lit.) |
| 分子式 | C24H50 |
| 分子量 | 338.654 |
| 闪点 | 234.5±7.2 °C |
| 精确质量 | 338.391266 |
| LogP | 13.51 |
| 蒸汽压 | 0.0±0.4 mmHg at 25°C |
| 折射率 | 1.446 |
| 储存条件 | 存放在密封容器内，并放在阴凉，干燥处。储存的地方必须远离氧化剂。 |
| 稳定性 | 1. 远离氧化物。 2. 存在于烤烟烟叶、烟气中。 |
| 分子结构 | 1、 摩尔折射率：113.23 2、 摩尔体积（cm3/mol）：424.6 3、 等张比容（90.2K）：986.9 4、 表面张力（dyne/cm）：29.1 5、 介电常数（F/m）：2.09 6、 极化率（10-24cm3）：44.89 |
| 计算化学 | 1.疏水参数计算参考值（XlogP）:无 2.氢键供体数量:0 3.氢键受体数量:0 4.可旋转化学键数量:21 5.互变异构体数量:无 6.拓扑分子极性表面积0 7.重原子数量:24 8.表面电荷:0 9.复杂度:174 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：白色晶体。 2. 密度（g/mL,25/4℃）：0.7991 3. 相对蒸汽密度（g/mL,空气=1）：未确定 4. 熔点（ºC）：49-52 5. 沸点（ºC,常压）：391 6. 沸点（ºC,5.2kPa）：未确定 7. 折射率(n20D) ：1.4283 8. 闪点（ºC）： 194 9. 比旋光度（º）：未确定 10. 自燃点或引燃温度（ºC）：未确定 11. 蒸气压（kPa,25ºC）：未确定 12. 饱和蒸气压（kPa,60ºC）：未确定 13. 燃烧热（KJ/mol）：未确定 14. 临界温度（K）：526.85 15. 临界压力（MPa）：0.87 16. 油水（辛醇/水）分配系数的对数值：未确定 17. 爆炸上限（%,V/V）：未确定 18. 爆炸下限（%,V/V）：未确定 19. 溶解性：不能溶于水。 |
Synonym:None Known 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. Runoff from fire control or dilution water may cause pollution. 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: Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. 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# 646-31-1: 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: Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced. Section 9 - PHYSICAL AND CHEMICAL PROPERTIES Physical State: Solid Color: white Odor: None reported. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: 391 deg C @ 760.00mmHg Freezing/Melting Point: 49.00 - 52.00 deg C Autoignition Temperature: Not applicable. Flash Point: > 110 deg C (> 230.00 deg F) Explosion Limits, lower: Not available. Explosion Limits, upper: Not available. Decomposition Temperature: Solubility in water: insoluble Specific Gravity/Density: Molecular Formula: C24H50 Molecular Weight: 338.65 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# 646-31-1 unlisted. LD50/LC50: Not available. Carcinogenicity: Tetracosane - 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# 646-31-1: No information available. Canada CAS# 646-31-1 is listed on Canada's DSL List. CAS# 646-31-1 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 646-31-1 is listed on the TSCA inventory. 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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| 个人防护装备 | Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter |
|---|---|
| 危害码 (欧洲) | F+ |
| 安全声明 (欧洲) | S24/25 |
| 危险品运输编码 | NONH for all modes of transport |
| WGK德国 | 3 |
| 海关编码 | 2901100000 |
| 上游产品 9 | |
|---|---|
| 下游产品 7 | |
| 海关编码 | 2901100000 |
|---|---|
| 中文概述 | 2901100000 饱和无环烃。监管条件:无。增值税率:17.0%。退税率:9.0%。最惠国关税:2.0%。普通关税:30.0% |
| 申报要素 | 品名, 成分含量, 用途, 用作气体燃料的应报明包装容器容积, 散装货物应报明 |
| Summary | 2901100000 saturated acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0% |
