41264-06-6

• 常用中文名：4,6-二甲基-2-氧代-2H-吡喃-5-羧酸甲酯
• 常用英文名：Methyl isodehydracetate
• CAS号：41264-06-6
• 分子式：C₉H₁₀O₄
• 分子量：182.173
• 发布时间：2018-08-06 16:27:21
• 更新时间：2024-01-06 19:02:04

名称

• 中文名: 4,6-二甲基阔马酸甲酯
• 英文名: Methyl isodehydroacetate
• 中文别名: 4,6-二甲基-2-氧-2H-吡喃-5-甲酸甲酯; 5-甲氧羰基-4,6-二甲基-2-吡喃酮
• 英文别名: Methylisodehydroacetate; EINECS 255-283-5; Methyl 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylate; 2H-Pyran-5-carboxylic acid, 4,6-dimethyl-2-oxo-, methyl ester; Methyl isodehydracetate; Methyl-4,6-dimethyl-2-oxo-2H-pyran-5-carboxylat; methyl 2,4-dimethyl-6-oxopyran-3-carboxylate; MFCD00006642

物化性质

• 密度: 1.2±0.1 g/cm3
• 沸点: 300.3±0.0 °C at 760 mmHg
• 熔点: 68-70 °C(lit.)
• 分子式: C₉H₁₀O₄
• 分子量: 182.173
• 闪点: 139.3±18.8 °C
• 精确质量: 182.057907
• PSA: 56.51000
• LogP: 0.52
• 外观性状: 白色针状晶体
• 蒸汽压: 0.0±0.6 mmHg at 25°C
• 折射率: 1.495
• 储存条件:

  密闭于阴凉干燥环境中

• 稳定性:

  遵照规定使用和储存则不会分解。

• 分子结构:

  1、 摩尔折射率：44.35

  2、 摩尔体积（m³/mol）：152.1

  3、 等张比容（90.2K）：375.9

  4、 表面张力（dyne/cm）：37.2

  5、 极化率（10 ^-24cm ³）：17.58

• 计算化学:

  1.疏水参数计算参考值（XlogP）:0.6

  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:2

  5.互变异构体数量:5

  6.拓扑分子极性表面积52.6

  7.重原子数量:13

  8.表面电荷:0

  9.复杂度:323

  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：无可用

  2. 密度（g/mL,25/4℃）：无可用

  3. 相对蒸汽密度（g/mL,空气=1）：无可用

  4. 熔点（ºC）：68-70

  5. 沸点（ºC,常压）：167/14mmHg

  6. 沸点（ºC,5.2kPa）：无可用

  7. 折射率：无可用

  8. 闪点（ºC）：无可用

  9. 比旋光度（º）：无可用

  10. 自燃点或引燃温度（ºC）：无可用

  11. 蒸气压（kPa,25ºC）：无可用

  12. 饱和蒸气压（kPa,60ºC）：无可用

  13. 燃烧热（KJ/mol）：无可用

  14. 临界温度（ºC）：无可用

  15. 临界压力（KPa）：无可用

  16. 油水（辛醇/水）分配系数的对数值：无可用

  17. 爆炸上限（%,V/V）：无可用

  18. 爆炸下限（%,V/V）：无可用

  19. 溶解性：无可用

MSDS

Name: Methyl Isodehydracetate 97% Material Safety Data Sheet Synonym: Methyl-4,6-Dimethyl-2-Oxo-2H-Pyran-5-Carboxylate CAS: 41264-06-6 Section 1 - Chemical Product MSDS Name:Methyl Isodehydracetate 97% Material Safety Data Sheet Synonym:Methyl-4,6-Dimethyl-2-Oxo-2H-Pyran-5-Carboxylate Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 41264-06-6 Methyl Isodehydracetate 97% 255-283-5 Hazard Symbols: None Listed. 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. 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: Keep container closed when not in use. 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 process enclosure, local exhaust ventilation, or other engineering controls to control airborne levels. Exposure Limits CAS# 41264-06-6: 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 minimize contact with skin. Respirators: A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use. Section 9 - PHYSICAL AND CHEMICAL PROPERTIES Physical State: Crystalline powder Color: white Odor: Not available. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: 167 deg C @ 14.00mm Hg Freezing/Melting Point: 67.00 - 69.00 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: C9H10O4 Molecular Weight: 182.18 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# 41264-06-6 unlisted. LD50/LC50: Not available. Carcinogenicity: Methyl Isodehydracetate - 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 Shipping Name: Not regulated. Hazard Class: UN Number: Packing Group: IMO Shipping Name: Not regulated. Hazard Class: UN Number: Packing Group: RID/ADR Shipping Name: Not regulated. Hazard Class: UN Number: Packing group: 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. WGK (Water Danger/Protection) CAS# 41264-06-6: No information available. Canada CAS# 41264-06-6 is listed on Canada's NDSL List. CAS# 41264-06-6 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 41264-06-6 is listed on the TSCA inventory. SECTION 16 - ADDITIONAL INFORMATION N/A

毒性和生态

生态学数据: 该物质对环境可能有危害，对水体应给予特别注意。

安全

• 安全声明 (欧洲): S24/25
• WGK德国: 3
• 海关编码: 2932209090

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海关

海关编码	2932209090
中文概述	2932209090. 其他内酯. 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	2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%