18874-52-7

• 常用中文名：5-溴-2-甲基-4-硝基-1H-咪唑
• 常用英文名：4-Bromo-2-methyl-5-nitro-1H-imidazole
• CAS号：18874-52-7
• 分子式：C₄H₄BrN₃O₂
• 分子量：205.997
• 发布时间：2019-02-16 11:00:50
• 更新时间：2024-01-08 18:52:39

名称

• 中文名: 5-溴-2-甲基-4-硝基-1H-咪唑
• 英文名: 5-bromo-2-methyl-4-nitro-1h-imidazole
• 中文别名: 5-溴-2-甲基-4-硝基咪唑
• 英文别名: 1H-Imidazole, 5-bromo-2-methyl-4-nitro-; 5(4)-bromo-2-methyl-4(5)-nitroimidazole; 4-bromo-2-methyl-5-nitro-3H-imidazole; 5(4)-bromo-2-methyl-4(5)-nitro-1H-imidazole; 1H-imidazole, 4-bromo-2-methyl-5-nitro-; 5-bromo-2-methyl-4-nitroimidazole; 4(5)-bromo-2-methyl-5(4)-nitro-1H-imidazole; 4-Bromo-2-methyl-5-nitro-1H-imidazole; 2-methyl-4(5)-nitro-5(4)bromoimidazole; 4(5)-bromo-2-methyl-5(4)-nitroimidazole

物化性质

• 密度: 2.0±0.1 g/cm3
• 沸点: 391.0±22.0 °C at 760 mmHg
• 熔点: 225ºC (dec.)
• 分子式: C₄H₄BrN₃O₂
• 分子量: 205.997
• 闪点: 190.3±22.3 °C
• 精确质量: 204.948685
• PSA: 74.50000
• LogP: 0.87
• 外观性状: 白色至灰白色固体
• 蒸汽压: 0.0±0.9 mmHg at 25°C
• 折射率: 1.638
• 储存条件: 2-8°C， 避光， 惰性气体
• 计算化学:

  1.疏水参数计算参考值（XlogP）:无

  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:0

  5.互变异构体数量:2

  6.拓扑分子极性表面积:74.5

  7.重原子数量:10

  8.表面电荷:0

  9.复杂度:148

  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

MSDS

Name: 5-Bromo-2-methyl-4-nitro-1h-imidazole 97% Material Safety Data Sheet Synonym: CAS: 18874-52-7 Section 1 - Chemical Product MSDS Name:5-Bromo-2-methyl-4-nitro-1h-imidazole 97% Material Safety Data Sheet Synonym: Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 18874-52-7 5-Bromo-2-methyl-4-nitro-1H-imidazole 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# 18874-52-7: 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: cream Odor: Not available. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: Not available. Freezing/Melting Point: 225 deg C(decom) 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: C4H4BrN3O2 Molecular Weight: 206 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Not available. Conditions to Avoid: Incompatible materials. Incompatibilities with Other Materials: Oxidizing agents. Hazardous Decomposition Products: Nitrogen oxides, carbon monoxide, carbon dioxide, hydrogen bromide, bromine. Hazardous Polymerization: Has not been reported Section 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 18874-52-7 unlisted. LD50/LC50: Not available. Carcinogenicity: 5-Bromo-2-methyl-4-nitro-1H-imidazole - 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# 18874-52-7: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 18874-52-7 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 18874-52-7 is not listed on the TSCA inventory. It is for research and development use only. SECTION 16 - ADDITIONAL INFORMATION N/A

安全

• 危害码 (欧洲): Xi:Irritant;
• 风险声明 (欧洲): R20/21/22
• 安全声明 (欧洲): S26
• 海关编码: 2933290090

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海关

海关编码	2933290090
中文概述	2933290090. 其他结构含非稠合咪唑环的化合物. 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	2933290090. other compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%