78431-21-7

• 常用中文名：5-氯-1,3-二甲基-4-(2-偶氮苯基-1-烯基)-1H-吡唑
• 常用英文名：5-CHLORO-1,3-DIMETHYL-4-(2-PHENYLDIAZ-1-ENYL)-1H-PYRAZOLE
• CAS号：78431-21-7
• 分子式：C₁₁H₁₁ClN₄
• 分子量：234.68500
• 发布时间：2018-12-18 21:13:09
• 更新时间：2024-01-29 18:26:49

名称

• 中文名: 5-氯-1,3-二甲基-4-(2-偶氮苯基-1-烯基)-1H-吡唑
• 英文名: (5-chloro-1,3-dimethylpyrazol-4-yl)-phenyldiazene
• 英文别名: 5-chloro-1,3-dimethyl-4-phenyldiazenyl-1,2-diazacyclopenta-2,4-diene

物化性质

• 密度: 1.26g/cm3
• 沸点: 382.9ºC at 760 mmHg
• 熔点: 44ºC
• 分子式: C₁₁H₁₁ClN₄
• 分子量: 234.68500
• 闪点: 185.3ºC
• 精确质量: 234.06700
• PSA: 42.54000
• LogP: 3.79730
• 折射率: 1.625

MSDS

Name: 5-Chloro-1,3-dimethyl-4-(2-phenyldiaz-1-enyl)-1h-pyrazole, 97% Material Safety Data Sheet Synonym: 5-Chloro-1,3-dimethyl-4-phenylazopyrazole CAS: 78431-21-7 Section 1 - Chemical Product MSDS Name: 5-Chloro-1,3-dimethyl-4-(2-phenyldiaz-1-enyl)-1h-pyrazole, 97% Material Safety Data Sheet Synonym: 5-Chloro-1,3-dimethyl-4-phenylazopyrazole SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 78431-21-7 5-Chloro-1,3-dimethyl-4-(2-phenyldiaz- 97% 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. Store under an inert atmosphere. 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# 78431-21-7: 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: yellow Odor: Not available. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: Not available. Freezing/Melting Point: 44 - 46 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: C11H11ClN4 Molecular Weight: 235 SECTION 10 - STABILITY AND REACTIVITY Chemical Stability: Not available. Conditions to Avoid: Incompatible materials. Incompatibilities with Other Materials: Acids, bases, 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# 78431-21-7 unlisted. LD50/LC50: Not available. Carcinogenicity: 5-Chloro-1,3-dimethyl-4-(2-phenyldiaz-1-enyl)-1H-pyrazole - 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: III IMO Shipping Name: TOXIC SOLID, ORGANIC, N.O.S. Hazard Class: 6.1 UN Number: 2811 Packing Group: III RID/ADR Shipping Name: TOXIC SOLID, ORGANIC, N.O.S. Hazard Class: 6.1 UN Number: 2811 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# 78431-21-7: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 78431-21-7 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 78431-21-7 is not listed on the TSCA inventory. It is for research and development use only. SECTION 16 - ADDITIONAL INFORMATION MSDS Creation Date: 6/10/2003 Revision #0 Date: Original. The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no way shall the company be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if the company has been advised of the possibility of such damages. SECTION 16 - ADDITIONAL INFORMATION N/A

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
• 海关编码: 2933199090

合成路线

78431-20-6 ~85% 78431-21-7

文献：Tanaka, Tomoo; Tanaka, Kuniyuki Chemical and Pharmaceutical Bulletin, 1981 , vol. 29, # 2 p. 445 - 450

3201-29-4 ~% 78431-21-7

文献：Tanaka, Tomoo; Tanaka, Kuniyuki Chemical and Pharmaceutical Bulletin, 1981 , vol. 29, # 2 p. 445 - 450

100-34-5 ~% 78431-21-7

文献：Tanaka, Tomoo; Tanaka, Kuniyuki Chemical and Pharmaceutical Bulletin, 1981 , vol. 29, # 2 p. 445 - 450

上下游产品

上游产品  2
78431-20-6 100-34-5
下游产品  0

海关

海关编码	2933199090
中文概述	2933199090. 其他结构上有非稠合吡唑环化合物. 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	2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%