89639-83-8

• 常用中文名：4,5-二甲基-2-呋喃酸
• 常用英文名：4,5-dimethyl-2-furoic acid
• CAS号：89639-83-8
• 分子式：C₇H₈O₃
• 分子量：140.13700
• 发布时间：2018-08-31 15:30:29
• 更新时间：2024-01-08 13:14:33
• 下载msds

名称

• 中文名: 4,5-二甲基-2-呋喃甲酸
• 英文名: 4,5-dimethylfuran-2-carboxylic acid
• 中文别名: 4,5-二甲基-2-呋喃酸
• 英文别名: 4,5-Dimethyl-furan-2-carbonsaeure; 4,5-dimethyl-2-furancarboxylic acid; 4,5-Dimethyl-2-furoic acid; 2,3-dimethylfuran-5-carboxylic acid; 4,5-dimethylfurancarboxylic acid; 4,5-dimethyl-furan-2-carboxylic acid; MFCD00085031; 2-Furancarboxylic acid,4,5-dimethyl

物化性质

• 密度: 1.194g/cm3
• 沸点: 254.6ºC at 760 mmHg
• 熔点: 146-148°C
• 分子式: C₇H₈O₃
• 分子量: 140.13700
• 闪点: 107.8ºC
• 精确质量: 140.04700
• PSA: 50.44000
• LogP: 1.59460
• 折射率: 1.51
• 分子结构:

  1、 摩尔折射率：35.13

  2、 摩尔体积（m³/mol）：117.3

  3、 等张比容(90.2K)：298.6

  4、 表面张力(dyne/cm)：42.0

  5、 极化率(10-24cm³)：13.92

• 计算化学:

  1.疏水参数计算参考值（XlogP）:1.6

  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:1

  5.互变异构体数量:3

  6.拓扑分子极性表面积50.4

  7.重原子数量:10

  8.表面电荷:0

  9.复杂度:144

  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：无色液体

  2. 密度（g/mL25ºC）：未确定

  3. 相对蒸汽密度（g/mL,空气=1）：未确定

  4. 熔点（ºC）：146-148

  5. 沸点（ºC,常压）：未确定

  6. 沸点（ºC1mmHg）：未确定

  7. 折射率：未确定

  8. 闪点（ºC15mmHg）：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（kPa,）：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（ºC）：未确定

  15. 临界压力（KPa）：未确定

  16. 油水（正辛醇/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

Name: 4 5-Dimethyl-2-furoic acid 97% Material Safety Data Sheet Synonym: CAS: 89639-83-8 Section 1 - Chemical Product MSDS Name:4 5-Dimethyl-2-furoic acid 97% Material Safety Data Sheet Synonym: Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 89639-83-8 4,5-Dimethyl-2-furoic acid 97% unlisted Hazard Symbols: XI Risk Phrases: 36/37/38 Section 3 - HAZARDS IDENTIFICATION EMERGENCY OVERVIEW Irritating to eyes, respiratory system and skin. Potential Health Effects Eye: Causes eye irritation. Skin: Causes skin irritation. May be harmful if absorbed through the skin. Ingestion: May cause irritation of the digestive tract. May be harmful if swallowed. Inhalation: Causes respiratory tract irritation. May be harmful if inhaled. Chronic: Not available. 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. Ingestion: Get medical aid. Wash mouth out with 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: Treat symptomatically and supportively. 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. Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or chemical 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. Section 7 - HANDLING and STORAGE Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Storage: Store in a cool, dry place. Store in a tightly closed container. 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# 89639-83-8: Personal Protective Equipment Eyes: Not available. 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: Not available. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: Not available. Freezing/Melting Point: 146 - 148 deg C Autoignition Temperature: Not available. Flash Point: Not available. Explosion Limits, lower: Not available. Explosion Limits, upper: Not available. Decomposition Temperature: Solubility in water: Specific Gravity/Density: Molecular Formula: C7H8O3 Molecular Weight: 140 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Not available. Conditions to Avoid: Incompatible materials. Incompatibilities with Other Materials: Oxidizing agents. Hazardous Decomposition Products: Carbon monoxide, carbon dioxide. Hazardous Polymerization: Has not been reported Section 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 89639-83-8 unlisted. LD50/LC50: Not available. Carcinogenicity: 4,5-Dimethyl-2-furoic acid - 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 No information available. IMO No information available. RID/ADR No information available. Section 15 - REGULATORY INFORMATION European/International Regulations European Labeling in Accordance with EC Directives Hazard Symbols: XI Risk Phrases: R 36/37/38 Irritating to eyes, respiratory system and skin. Safety Phrases: S 26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S 37/39 Wear suitable gloves and eye/face protection. WGK (Water Danger/Protection) CAS# 89639-83-8: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 89639-83-8 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 89639-83-8 is not listed on the TSCA inventory. It is for research and development use only. SECTION 16 - ADDITIONAL INFORMATION N/A

安全

• 风险声明 (欧洲): 36/37/38
• 安全声明 (欧洲): S26-S36/37/39
• 海关编码: 2932190090

合成路线

海关

海关编码	2932190090
中文概述	2932190090 其他结构上有非稠合呋喃环化合物. 增值税率:17.0% 退税率:9.0% 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	2932190090 other compounds containing an unfused furan ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%