1792-41-2

• 常用中文名：2,5-二甲基苯并咪唑
• 常用英文名：1H-Benzimidazole,2,6-dimethyl-
• CAS号：1792-41-2
• 分子式：C₉H₁₀N₂
• 分子量：146.18900
• 发布时间：2018-06-21 11:57:28
• 更新时间：2024-01-19 20:05:44

名称

• 中文名: 2,5-二甲基-1H-苯并咪唑
• 英文名: 2,6-dimethyl-1H-benzimidazole
• 中文别名: 2,5-二甲基苯并咪唑
• 英文别名: 2,5-Dimethyl-1H-benzimidazole; 2,5-dimethylbenzimidazole; 2,4-DIMETHYL-3-METHOXYBENZENEBORONIC ACID; 2,5-dimethyl-1H-1,3-benzodiazole; 1H-BENZIMIDAZOLE,2,5-DIMETHYL

物化性质

• 密度: 1.437g/cm3
• 沸点: 446ºC at 760mmHg
• 熔点: 202-205ºC
• 分子式: C₉H₁₀N₂
• 分子量: 146.18900
• 闪点: 223.5ºC
• 精确质量: 146.08400
• PSA: 28.68000
• LogP: 2.17970
• 外观性状: 淡棕色粉末
• 蒸汽压: 0mmHg at 25°C
• 折射率: 1.645
• 储存条件:

  密封贮藏，储存在阴凉、干燥的地方

• 稳定性:

  常温常压稳定，可与强还原剂、强氧化剂反应

• 计算化学:

  1.疏水参数计算参考值（XlogP）:2.3

  2.氢键供体数量:1

  3.氢键受体数量:1

  4.可旋转化学键数量:0

  5.互变异构体数量:2

  6.拓扑分子极性表面积28.7

  7.重原子数量:11

  8.表面电荷:0

  9.复杂度:147

  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：浅棕色粉末

  2. 密度（g/mL,20 ºC）：未确定

  3. 相对蒸汽密度（g/mL,空气=1）：未确定

  4. 熔点（ºC）：202-205

  5. 沸点（ºC/0.3mmHg）：未确定

  6. 沸点（ºC,5.2kPa）：未确定

  7. 折射率：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（kPa,25ºC）：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-Dimethyl-1H-benzimidazole 99% Material Safety Data Sheet Synonym: None listed CAS: 1792-41-2 Section 1 - Chemical Product MSDS Name:2 5-Dimethyl-1H-benzimidazole 99% Material Safety Data Sheet Synonym:None listed Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 1792-41-2 2,5-Dimethyl-1H-benzimidazole 99 unlisted 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: 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. 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. Extinguishing Media: Use agent most appropriate to extinguish fire. 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: Sweep up, then place into a suitable container for disposal. Provide ventilation. Section 7 - HANDLING and STORAGE Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Do not breathe dust. 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# 1792-41-2: 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: Powder Color: light brown Odor: None reported. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: Not available. Freezing/Melting Point: Not available. Autoignition Temperature: Not applicable. Flash Point: Not applicable. Explosion Limits, lower: Not available. Explosion Limits, upper: Not available. Decomposition Temperature: Not available. Solubility in water: Not available. Specific Gravity/Density: Not available. Molecular Formula: C9H10N2 Molecular Weight: 146.19 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Stable under normal temperatures and pressures. Conditions to Avoid: Incompatible materials, strong oxidants. Incompatibilities with Other Materials: Oxidizing agents. Hazardous Decomposition Products: Irritating and toxic fumes and gases. Hazardous Polymerization: Has not been reported. Section 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 1792-41-2 unlisted. LD50/LC50: Not available. Carcinogenicity: 2,5-Dimethyl-1H-benzimidazole - 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: Not available. Risk Phrases: 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# 1792-41-2: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 1792-41-2 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 1792-41-2 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

毒理学数据: 刺激眼睛、皮肤和粘膜 生态学数据: 对水是稍微危害的，不要让未稀或大量产品进入地下水、水道或污水系统 若无政府许可，勿将材料排入周围环境。

安全

• 危害码 (欧洲): Xn: Harmful;
• 风险声明 (欧洲): R36/37/38
• 安全声明 (欧洲): 36/37/39-26-22
• 海关编码: 2933990090

合成路线

海关

海关编码	2933990090
中文概述	2933990090. 其他仅含氮杂原子的杂环化合物. 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, 乌洛托品请注明外观, 6－己内酰胺请注明外观, 签约日期
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%