50634-05-4

• 常用中文名：2,5-二甲氧基-3-四氢呋喃缩醛
• 常用英文名：2,5-Dimethoxy-3-tetrahydrofurancarboxaldehyde
• CAS号：50634-05-4
• 分子式：C₇H₁₂O₄
• 分子量：160.16800
• 发布时间：2018-12-29 17:07:06
• 更新时间：2024-01-04 07:20:45
• 下载msds

名称

• 中文名: 2,5-二甲氧基-3-四氢呋喃缩醛
• 英文名: 2,5-Dimethoxy-3-tetrahydrofurancarboxaldehyde
• 中文别名: 2,5-二甲氧基-3-四氢呋喃羧醛; 2,4-二羟基苯腈
• 英文别名: 2,5-dimethoxyoxolane-3-carbaldehyde; MFCD00010283; EINECS 256-668-0

物化性质

• 密度: 1.129 g/mL at 25ºC(lit.)
• 沸点: 89ºC12 mm Hg(lit.)
• 分子式: C₇H₁₂O₄
• 分子量: 160.16800
• 闪点: 178 °F
• 精确质量: 160.07400
• PSA: 44.76000
• LogP: 0.16680
• 外观性状: 透明黄色至棕色液体
• 折射率: n20/D 1.4401(lit.)
• 储存条件:

  保持贮藏器密封、储存在阴凉、干燥的地方，确保工作间有良好的通风或排气装置

• 稳定性:

  如果遵照规格使用和储存则不会分解，未有已知危险反应

• 计算化学:

  1、 疏水参数计算参考值（XlogP）：-0.3

  2、 氢键供体数量：0

  3、 氢键受体数量：4

  4、 可旋转化学键数量：3

  5、 互变异构体数量：2

  6、 拓扑分子极性表面积（TPSA）：44.8

  7、 重原子数量：11

  8、 表面电荷：0

  9、 复杂度：136

  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：3

  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：液体

  2. 密度（g/mL,25ºC）：1.129

  3. 相对蒸汽密度（g/mL,空气=1）： 未确定

  4. 熔点（ºC）：未确定

  5. 沸点（ºC）：未确定

  6. 沸点（ºC，12mm hg）：89

  7. 折射率：n 20/D 1.4401(lit.)

  8. 闪点（°C）：81

  9. 比旋光度（ºC）：未确定

  10. 自燃点或引燃温度（ºC）： 未确定

  11. 蒸气压（kPa,20ºC）：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（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: 2 5-Dimethoxy-3-tetrahydrofurancarboxaldehyde mixture of isomers Material Safety Data Sheet Synonym: None Known CAS: 50634-05-4 Section 1 - Chemical Product MSDS Name:2 5-Dimethoxy-3-tetrahydrofurancarboxaldehyde mixture of isomers Material Safety Data Sheet Synonym:None Known Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 50634-05-4 2,5-Dimethoxy-3-tetrahydrofurancarboxa 90% 256-668-0 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. May cause chemical conjunctivitis. 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. Can produce delayed pulmonary edema. Chronic: No information found. Section 4 - FIRST AID MEASURES Eyes: Immediately 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. 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. Do NOT use mouth-to-mouth resuscitation. 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. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. Runoff from fire control or dilution water may cause pollution. Combustible liquid and vapor. Extinguishing Media: Use water spray to cool fire-exposed containers. 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: Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. Section 7 - HANDLING and STORAGE Handling: Wash thoroughly after handling. Avoid breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Keep away from heat and flame. Storage: Keep away from sources of ignition. 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# 50634-05-4: 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: Liquid Color: clear yellow brown Odor: Not available. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: 89 deg C @ 12 mmHg Freezing/Melting Point: Not available. Autoignition Temperature: Not available. Flash Point: 81 deg C ( 177.80 deg F) Explosion Limits, lower: Not available. Explosion Limits, upper: Not available. Decomposition Temperature: Solubility in water: Specific Gravity/Density: 1.129 Molecular Formula: C7H12O4 Molecular Weight: 160.17 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Stable at room temperature in closed containers under normal storage and handling conditions. Conditions to Avoid: Ignition sources, excess heat. Incompatibilities with Other Materials: Strong oxidizing agents, strong acids, strong bases. Hazardous Decomposition Products: Carbon monoxide, carbon dioxide. Hazardous Polymerization: Has not been reported Section 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 50634-05-4 unlisted. LD50/LC50: Not available. Carcinogenicity: 2,5-Dimethoxy-3-tetrahydrofurancarboxaldehyde - 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: 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# 50634-05-4: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 50634-05-4 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 50634-05-4 is not listed on the TSCA inventory. It is for research and development use only. SECTION 16 - ADDITIONAL INFORMATION N/A

毒性和生态

生态学数据: 对水是稍微有危害的不要让未稀释或大量的产品接触地下水、水道或者污水系统，若无政府许可，勿将材料排入周围环境。

安全

• 符号: GHS07
• 信号词: Warning
• 危害声明: H302 + H312 + H332-H315-H319-H335
• 警示性声明: P261-P280-P305 + P351 + P338
• 个人防护装备: Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
• 危害码 (欧洲): Xn
• 风险声明 (欧洲): R20/21/22
• 安全声明 (欧洲): S26-S36-S37-S39
• 危险品运输编码: NONH for all modes of transport
• 海关编码: 2932190090

合成路线

332-77-4 201230-82-2 ~% 50634-05-4

文献：Vol'f, E. Yu.; Solov'eva, T. Yu.; Vartanyan, M. M.; Brezhnev, L. Yu.; Lapidus, A. L. Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1989 , vol. 38, # 11.2 p. 2356 - 2358 Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1989 , # 11 p. 2569 - 2571

上下游产品

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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%