112440-47-8

• 常用中文名：2,3-双(2,4,5-三甲基-3-噻吩基)马来酸酐
• 常用英文名：2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic Anhydride
• CAS号：112440-47-8
• 分子式：C₁₈H₁₈O₃S₂
• 分子量：346.46400
• 发布时间：2018-10-21 17:51:07
• 更新时间：2024-01-10 00:16:20

名称

• 中文名: 2,3-双(2,4,5-三甲基-3-噻吩)马来酸酐
• 英文名: 3,4-bis(2,4,5-trimethylthiophen-3-yl)furan-2,5-dione
• 中文别名: 2,3-二(2,4,5-三甲基-3-噻吩)马来酸酐; 2,3-双(2,4,5-三甲基-3-噻吩基)马来酐; 2-氨基-4-苯基噻吩-3-甲酸甲酯
• 英文别名: 2,3,4-TRIFLUOROBENZENEYL ACETALDEHYDE; 2,3-bis(2,3,5-trimethylthienyl)maleic anhydride; 2,3-bis(2,3,5-trimethyl-3-thienyl)maleic anhydride; 1,2-bis(2,4,5-trimethylthiophene-3-yl)maleic anhydride; B1534; 2,3-Bis(2,4,5-triMethyl-3-thienyl)Maleic Anhydride; 1,2-bis(2,4,5-trimethyl-3-thienyl)maleic anhydride

物化性质

• 密度: 1.297g/cm3
• 沸点: 514.4ºC at 760 mmHg
• 熔点: 168ºC
• 分子式: C₁₈H₁₈O₃S₂
• 分子量: 346.46400
• 闪点: 264.9ºC
• 精确质量: 346.07000
• PSA: 99.85000
• LogP: 4.65420
• 蒸汽压: 1.08E-10mmHg at 25°C
• 折射率: 1.625
• 储存条件: 室温，存于惰性气体中
• 分子结构:

  1、摩尔折射率：94.51

  2、摩尔体积（cm³/mol）：267

  3、等张比容（90.2K）：718.4

  4、表面张力（dyne/cm）：52.4

  5、介电常数：无可用的

  6、极化率（10^-24cm³）：37.46

  7、单一同位素质量：346.069734 Da

  8、标称质量：346 Da

  9、平均质量：346.4637 Da

• 计算化学:

  1.疏水参数计算参考值（XlogP）:4.8

  2.氢键供体数量:0

  3.氢键受体数量:5

  4.可旋转化学键数量:2

  5.互变异构体数量:7

  6.拓扑分子极性表面积99.8

  7.重原子数量:23

  8.表面电荷:0

  9.复杂度:523

  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：未确定

  2. 密度（g/mL,25℃）：未确定

  3. 相对蒸汽密度（g/mL,空气=1）：未确定

  4. 熔点（ºC）：168

  5. 沸点（ºC,常压）：未确定

  6. 沸点（ºC，1mmHg）：未确定

  7. 折射率(n20/D)：未确定

  8. 闪点（ºC）：未确定

  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（mmHg,20ºC）：未确定

  12. 饱和蒸气压（kPa,25ºC）：未确定

  13. 燃烧热（KJ/mol）：未确定

  14. 临界温度（ºC）：未确定

  15. 临界压力（KPa）：未确定

  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：未确定

MSDS

Section I.Chemical Product and Company Identification Chemical Name 2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic Anhydride Portland OR SynonymNot available. Chemical FormulaC18H18O3S2 CAS Number112440-47-8 Section II.Composition and Information on Ingredients Chemical NameCAS Number Percent (%)TLV/PELToxicology Data 2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic Anhydride112440-47-8 Min. 95.0 (T) Not available.Not available. Section III. Hazards Identification Acute Health EffectsNo specific information is available in our data base regarding the toxic effects of this material for humans. However, exposure to any chemical should be kept to a minimum. Skin and eye contact may result in irritation. May be harmful if inhaled or ingested. Always follow safe industrial hygiene practices and wear proper protective equipment when handling this compound. CARCINOGENIC EFFECTS : Not available. Chronic Health Effects MUTAGENIC EFFECTS : Not available. TERATOGENIC EFFECTS : Not available. DEVELOPMENTAL TOXICITY: Not available. There is no known effect from chronic exposure to this product. Repeated or prolonged exposure to this compound is not known to aggravate existing medical conditions. Section IV.First Aid Measures Eye ContactCheck for and remove any contact lenses. DO NOT use an eye ointment. Flush eyes with running water for a minimum of 15 minutes, occasionally lifting the upper and lower eyelids. Seek medical attention. Treat symptomatically and supportively. Skin ContactIf the chemical gets spilled on a clothed portion of the body, remove the contaminated clothes as quickly as possible, protecting your own hands and body. Place the victim under a deluge shower. If the chemical touches the victim's exposed skin, such as the hands: Gently and thoroughly wash the contaminated skin with running water and non-abrasive soap. Be particularly careful to clean folds, crevices, creases and groin. Cover the irritated skin with an emollient. Seek medical attention. Treat symptomatically and supportively. Wash any contaminated clothing before reusing. InhalationIf the victim is not breathing, perform artificial respiration. Loosen tight clothing such as a collar, tie, belt or waistband. If breathing is difficult, oxygen can be administered. Seek medical attention. Treat symptomatically and supportively. IngestionINDUCE VOMITING by sticking finger in throat. Lower the head so that the vomit will not reenter the mouth and throat. Loosen tight clothing such as a collar, tie, belt, or waistband. If the victim is not breathing, administer artificial respiration. Examine the lips and mouth to ascertain whether the tissues are damaged, a possible indication that the toxic material was ingested; the absence of such signs, however, is not conclusive. Seek immediate medical attention and, if possible, show the chemical label. Treat symptomatically and supportively. Section V. Fire and Explosion Data Not available. Combustible.Auto-Ignition Flammability Flammable Limits Flash PointsNot available. Not available. Combustion ProductsThese products are toxic carbon oxides (CO, CO 2), sulfur oxides (SO2, SO3...). Fire Hazards No specific information is available regarding the flammability of this compound in the presence of various materials. Explosion HazardsRisks of explosion of the product in presence of mechanical impact: Not available. Risks of explosion of the product in presence of static discharge: Not available. No additional information is available regarding the risks of explosion. Fire Fighting Media SMALL FIRE: Use DRY chemicals, CO 2, water spray or foam. LARGE FIRE: Use water spray, fog or foam. DO NOT use water jet. and Instructions Continued on Next Page 2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic Anhydride Section VI.Accidental Release Measures Spill CleanupIn case of a spill and/or a leak, always shut off any sources of ignition, ventilate the area, and exercise caution. Use a Instructionsshovel to put the material into a convenient waste disposal container. Finish cleaning the spill by rinsing any contaminated surfaces with copious amounts of water. Consult federal, state, and/or local authorities for assistance on disposal. Section VII. Handling and Storage Handling and StorageKeep away from heat and sources of ignition. Mechanical exhaust required. When not in use, tightly seal the container and store in a dry, cool place. Avoid excessive heat and light. DO NOT breathe dust. In case of insufficient ventilation, Information wear suitable respiratory equipment. If you feel unwell, seek medical attention and show the label when possible. Treat symptomatically and supportively. Avoid contact with skin and eyes. Always store away from incompatible compounds such as oxidizing agents. Section VIII. Exposure Controls/Personal Protection Engineering ControlsUse process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to airborne contaminants below the exposure limit. Personal ProtectionSplash goggles. Lab coat. Dust respirator. Boots. Gloves. A MSHA/NIOSH approved respirator must be used to avoid inhalation of the product. Suggested protective clothing might not be sufficient; consult a specialist BEFORE handling this product. Exposure LimitsNot available. Section IX. Physical and Chemical Properties Physical state @ 20°CPowder.Solubility Not available. Not available. Specific Gravity Molecular Weight346.47Partition Coefficient Not available. Boiling PointNot available.Vapor PressureNot available. Melting Point168°C (334.4°F)Vapor DensityNot available. Not available.Not available. Refractive IndexVolatility Critical TemperatureNot available.OdorNot available. ViscosityNot available.TasteNot available. Section X.Stability and Reactivity Data Stability This material is stable if stored under proper conditions. (See Section VII for instructions) Conditions of Instability Avoid excessive heat and light. Incompatibilities Reactive with oxidizing agents. Section XI. Toxicological Information RTECS NumberNot available. Routes of ExposureEye contact. Inhalation. Ingestion. Not available. Toxicity Data CARCINOGENIC EFFECTS : Not available. Chronic Toxic Effects MUTAGENIC EFFECTS : Not available. TERATOGENIC EFFECTS : Not available. DEVELOPMENTAL TOXICITY: Not available. There is no known effect from chronic exposure to this product. Repeated or prolonged exposure to this compound is not known to aggravate existing medical conditions. Acute Toxic EffectsNo specific information is available in our data base regarding the toxic effects of this material for humans. However, exposure to any chemical should be kept to a minimum. Skin and eye contact may result in irritation. May be harmful if inhaled or ingested. Always follow safe industrial hygiene practices and wear proper protective equipment when handling this compound. Continued on Next Page 2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic Anhydride Section XII.Ecological Information EcotoxicityNot available. Environmental FateNot available. Section XIII. Disposal Considerations Recycle to process, if possible. Consult your local or regional authorities. You may be able to dissolve or mix material with Waste Disposal a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber system. Observe all federal, state, and local regulations when disposing of this substance. Section XIV. Transport Information DOT ClassificationNot a DOT controlled material (United States). PIN NumberNot applicable. Proper Shipping Name Not applicable. Packing Group (PG)Not applicable. DOT Pictograms Section XV. Other Regulatory Information and Pictograms TSCA Chemical InventoryThis product is NOT on the EPA Toxic Substances Control Act (TSCA) inventory. The following notices are required by 40 CFR 720.36 (C) for those products not on the inventory list: (EPA) (i) These products are supplied solely for use in research and development by or under the supervision of a technically qualified individual as defined in 40 CFR 720.0 et sec. (ii) The health risks of these products have not been fully determined. Any information that is or becomes available will be supplied on an MSDS sheet. WHMIS ClassificationNot controlled under WHMIS (Canada). (Canada) EINECS Number (EEC) Not available. EEC Risk StatementsNot available. SECTION 16 - ADDITIONAL INFORMATION N/A

安全

• 海关编码: 2934999090

合成路线

1795-05-7 ~% 112440-47-8

文献：Journal of Organic Chemistry, , vol. 53, # 4 p. 803 - 808

112440-49-0 ~% 112440-47-8

文献：Journal of Organic Chemistry, , vol. 53, # 4 p. 803 - 808

63826-43-7 ~% 112440-47-8

文献：Journal of Organic Chemistry, , vol. 53, # 4 p. 803 - 808

110-80-5 112440-46-7 ~19% 112440-47-8

文献：Irie, Masahiro; Mohri, Masaaki Journal of Organic Chemistry, 1988 , vol. 53, # 4 p. 803 - 808

112440-48-9 ~% 112440-47-8

文献：Journal of Physical Chemistry, , vol. 96, # 19 p. 7671 - 7674

上下游产品

上游产品  5
1795-05-7 112440-49-0 110-80-5 112440-46-7
112440-48-9
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海关

海关编码	2934999090
中文概述	2934999090. 其他杂环化合物. 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:20.0%
申报要素	品名, 成分含量, 用途
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%