55557-52-3

• 常用中文名：2-氯-3-氰基吡嗪
• 常用英文名：3-Chlorpyrazin-2-carbonitril
• CAS号：55557-52-3
• 分子式：C₅H₂ClN₃
• 分子量：139.542
• 相关类别： 医药中间体 杂环化合物 吡嗪类化合物
• 发布时间：2018-03-22 08:00:00
• 更新时间：2024-01-02 12:49:19

名称

• 中文名: 2-氯-3-氰基吡嗪
• 英文名: 3-Chloropyrazine-2-carbonitrile
• 中文别名: 2-氰基-3-氯吡嗪; 3-氯-2-氰基吡嗪; 3-氯吡嗪-2-甲腈
• 英文别名: 2-Pyrazinecarbonitrile, 3-chloro-; 3-cyano-2-chloropyrazine; 3-chloro-2-cyanopyrazine; MFCD00219653; 3-Chloropyrazine-2-carbonitrile; chlorocyanopyrazine; 3-chlorpyrazin-2-carbonitril; 3-Chloro-2-pyrazinecarbonitrile; 2-Chloro-3-cyanopyrazine; 2-Chloro-3-cyannopyrazine

物化性质

• 密度: 1.4±0.1 g/cm3
• 沸点: 264.1±35.0 °C at 760 mmHg
• 熔点: 45-47°C
• 分子式: C₅H₂ClN₃
• 分子量: 139.542
• 闪点: 113.5±25.9 °C
• 精确质量: 138.993729
• PSA: 49.57000
• LogP: 0.73
• 蒸汽压: 0.0±0.5 mmHg at 25°C
• 折射率: 1.568
• 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）: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:0

  5.互变异构体数量:无

  6.拓扑分子极性表面积49.6

  7.重原子数量:9

  8.表面电荷:0

  9.复杂度:138

  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：未确定

  2. 密度（g/mL,25ºC）：未确定

  3. 相对蒸汽密度（g/mL,空气=1）： 未确定

  4. 熔点（ºC）：45-47

  5. 沸点（ºC）：未确定

  6. 沸点（ºC，20mm hg）：未确定

  7. 折射率：未确定

  8. 闪点（°C）：未确定

  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,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: 3-Chloropyrazine-2-carbonitrile 95+% Material Safety Data Sheet Synonym: 3-Chloro-2-cyanopyrazin CAS: 55557-52-3 Section 1 - Chemical Product MSDS Name:3-Chloropyrazine-2-carbonitrile 95+% Material Safety Data Sheet Synonym:3-Chloro-2-cyanopyrazin Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 55557-52-3 3-Chloropyrazine-2-carbonitrile 95+% unlisted Hazard Symbols: XN Risk Phrases: 20/21/22 36/37/38 Section 3 - HAZARDS IDENTIFICATION EMERGENCY OVERVIEW Harmful by inhalation, in contact with skin and if swallowed. Irritating to eyes, respiratory system and skin. Potential Health Effects Eye: Causes eye irritation. Skin: Causes skin irritation. Harmful if absorbed through the skin. Ingestion: Harmful if swallowed. May cause irritation of the digestive tract. Inhalation: Harmful if inhaled. Causes respiratory tract irritation. 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# 55557-52-3: 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: tan Odor: Not available. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: Not available. Freezing/Melting Point: 45 - 47 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: C5H2ClN3 Molecular Weight: 140 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Not available. Conditions to Avoid: Incompatible materials. Incompatibilities with Other Materials: Reducing agents, strong oxidizing agents. Hazardous Decomposition Products: Hydrogen chloride, chlorine, nitrogen oxides, carbon monoxide, carbon dioxide. Hazardous Polymerization: Has not been reported Section 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 55557-52-3 unlisted. LD50/LC50: Not available. Carcinogenicity: 3-Chloropyrazine-2-carbonitrile - 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: NITRILES, SOLID, TOXIC, N.O.S.* Hazard Class: 6.1 UN Number: 3276 Packing Group: III IMO Shipping Name: NITRILES, TOXIC, N.O.S. Hazard Class: 6.1 UN Number: 3276 Packing Group: III RID/ADR Shipping Name: NITRILES, TOXIC, N.O.S. Hazard Class: 6.1 UN Number: 3276 Packing group: III Section 15 - REGULATORY INFORMATION European/International Regulations European Labeling in Accordance with EC Directives Hazard Symbols: XN Risk Phrases: R 20/21/22 Harmful by inhalation, in contact with skin and if swallowed. 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 36/37/39 Wear suitable protective clothing, gloves and eye/face protection. WGK (Water Danger/Protection) CAS# 55557-52-3: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 55557-52-3 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 55557-52-3 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

• 危害码 (欧洲): Xn: Harmful;
• 风险声明 (欧洲): R20/21/22;R36/37/38
• 安全声明 (欧洲): S26-S36/37/39
• 危险品运输编码: 3276
• 海关编码: 2933990090

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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%