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112440-47-8生产厂家

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热门CAS号：
56-41-7 108-65-6
56-35-9 64-17-5
67-56-1 108-88-3
141-78-6 1310-73-2
13463-67-7 1333-86-4

112440-47-8

112440-47-8结构式
112440-47-8结构式

化源商城直购

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
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

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
海关编码 2934999090
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%

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