19689-66-8

• 常用中文名：3,4-二甲氧基硫代苯酚
• 常用英文名：3,4-DIMETHOXYTHIOPHENOL
• CAS号：19689-66-8
• 分子式：C₈H₁₀O₂S
• 分子量：170.22900
• 发布时间：2018-05-03 08:00:00
• 更新时间：2024-01-23 15:09:58

名称

• 中文名: 3,4-二甲氧基硫代苯酚
• 英文名: 3,4-dimethoxythiophenol, 99+%
• 英文别名: 3,5-Dimethoxybenzenethiol; 3,5-Dimethoxythiophenol

物化性质

• 沸点: 262.9ºC at 760mmHg
• 分子式: C₈H₁₀O₂S
• 分子量: 170.22900
• 闪点: 112.8ºC
• 精确质量: 170.04000
• PSA: 57.26000
• LogP: 1.99250
• 蒸汽压: 0.0173mmHg at 25°C
• 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：47.78

  2、 摩尔体积（m³/mol）：150.0

  3、 等张比容（90.2K）：369.1

  4、 表面张力（dyne/cm）：36.6

  5、 极化率（10^-24cm³）：18.94

• 计算化学:

  1.疏水参数计算参考值（XlogP）:无

  2.氢键供体数量:0

  3.氢键受体数量:3

  4.可旋转化学键数量:2

  5.互变异构体数量:无

  6.拓扑分子极性表面积19.5

  7.重原子数量:11

  8.表面电荷:-1

  9.复杂度:119

  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）：无可用

  5. 沸点（ºC,常压）：无可用

  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: 3 4-Dimethoxythiophenol 99+% Material Safety Data Sheet Synonym: 3,4-Dimethoxy-Phenylmercaptane; 4-Mercapto-Veratrol CAS: 19689-66-8 Section 1 - Chemical Product MSDS Name:3 4-Dimethoxythiophenol 99+% Material Safety Data Sheet Synonym:3,4-Dimethoxy-Phenylmercaptane; 4-Mercapto-Veratrol Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 19689-66-8 3,4-Dimethoxythiophenol 99+ unlisted Hazard Symbols: T Risk Phrases: 23/24/25 Section 3 - HAZARDS IDENTIFICATION EMERGENCY OVERVIEW Toxic by inhalation, in contact with skin and if swallowed.Stench.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. Mercaptans may cause nausea and headache. Exposure to high concentrations of mercaptans can produce unconsciousness with cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood), cold extremities and rapid pulse. Inhalation: May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. Exposure to high concentrations of mercaptans can produce unconsciousness with cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood), cold extremities and rapid pulse. Mercaptans may cause nausea and headache. 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. Use water spray to keep fire-exposed containers cool. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. Containers may explode when heated. Extinguishing Media: Use agent most appropriate to extinguish fire. Cool containers with flooding quantities of water until well after fire is out. Use water spray, dry chemical, carbon dioxide, or appropriate 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. Provide ventilation. Section 7 - HANDLING and STORAGE Handling: Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Storage: 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 adequate ventilation to keep airborne concentrations low. Exposure Limits CAS# 19689-66-8: 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: 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: Liquid Color: clear yellow Odor: stench pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: 162 deg C @ 25.00mmHg Freezing/Melting Point: Not available. 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: 1.1900g/cm3 Molecular Formula: C8H10O2S Molecular Weight: 170.23 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Stable under normal temperatures and pressures. Conditions to Avoid: Incompatible materials, excess heat. Incompatibilities with Other Materials: Oxidizing agents. Hazardous Decomposition Products: Carbon monoxide, oxides of sulfur, irritating and toxic fumes and gases, carbon dioxide. Hazardous Polymerization: Has not been reported. Section 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 19689-66-8 unlisted. LD50/LC50: Not available. Carcinogenicity: 3,4-Dimethoxythiophenol - 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: TOXIC SOLID, ORGANIC, N.O.S.* Hazard Class: 6.1 UN Number: 2811 Packing Group: II IMO Shipping Name: TOXIC SOLID, ORGANIC, N.O.S. Hazard Class: 6.1 UN Number: 2811 Packing Group: II RID/ADR Shipping Name: TOXIC SOLID, ORGANIC, N.O.S. Hazard Class: 6.1 UN Number: 2811 Packing group: II Section 15 - REGULATORY INFORMATION European/International Regulations European Labeling in Accordance with EC Directives Hazard Symbols: T Risk Phrases: R 23/24/25 Toxic by inhalation, in contact with skin and if swallowed. Safety Phrases: S 24/25 Avoid contact with skin and eyes. S 28A After contact with skin, wash immediately with plenty of water. S 37 Wear suitable gloves. S 45 In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). WGK (Water Danger/Protection) CAS# 19689-66-8: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 19689-66-8 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 19689-66-8 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: 该物质对环境可能有危害，对水体应给予特别注意。

安全

• 海关编码: 2930909090

合成路线

54839-88-2 ~98% 19689-66-8

文献：AQUINOX PHARMACEUTICALS INC.; MACKENZIE, Lyoyd, F.; MACRURY, Thomas, B.; HARWIG, Curtis; BOGUCKI, David; RAYMOND, Jeffery, R.; PETTIGREW, Jeremy, D.; KHLEBNIKOV, Vladimir; SHAN, Rudong Patent: WO2014/110036 A1, 2014 ; Location in patent: Page/Page column 175 ;

500-99-2 ~% 19689-66-8

文献：Journal of Medicinal Chemistry, , vol. 48, # 7 p. 2407 - 2419

54839-87-1 ~% 19689-66-8

文献：Journal of Medicinal Chemistry, , vol. 48, # 7 p. 2407 - 2419

10272-07-8 ~% 19689-66-8

文献：Canadian Journal of Chemistry, , vol. 63, p. 2471 - 2475

上下游产品

上游产品  4
54839-88-2 500-99-2 54839-87-1 10272-07-8
下游产品  5
2570-45-8 112664-30-9 92838-13-6 54839-92-8
54839-93-9

海关

海关编码	2930909090
中文概述	2930909090. 其他有机硫化合物. 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:30.0%
申报要素	品名, 成分含量, 用途
Summary	2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%