519054-55-8

• 常用中文名：苯并呋喃-5-硼酸频哪醇酯
• 常用英文名：5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-benzofuran
• CAS号：519054-55-8
• 分子式：C₁₄H₁₇BO₃
• 分子量：244.094
• 发布时间：2019-01-01 08:13:51
• 更新时间：2024-02-01 19:01:25

名称

• 中文名: 5-(4,4,5,5-四甲基-1,3,2-二氧硼烷-2-基)-1-苯并呋喃
• 英文名: 2-(1-benzofuran-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
• 中文别名: 苯并呋喃-5-硼酸频哪醇酯; 5-(4,4,5,5-四甲基-1,3,2-二氧杂环戊硼烷-2-基)-1-苯并呋喃
• 英文别名: Benzofuran-5-boronic acid pinacol ester; 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-benzofuran; Benzofuran, 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-

物化性质

• 密度: 1.1±0.1 g/cm3
• 沸点: 340.0±15.0 °C at 760 mmHg
• 熔点: 72ºC
• 分子式: C₁₄H₁₇BO₃
• 分子量: 244.094
• 闪点: 159.4±20.4 °C
• 精确质量: 244.127075
• PSA: 31.60000
• LogP: 2.73200
• 外观性状: 固体;White to Almost white powder to crystal
• 蒸汽压: 0.0±0.7 mmHg at 25°C
• 折射率: 1.541
• 储存条件: 室温

MSDS

Name: 5-(4 4 5 5-Tetramethyl-1 3 2-dioxaborolan-2-yl)-1-benzofuran Material Safety Data Sheet Synonym: None Known CAS: 519054-55-8 Section 1 - Chemical Product MSDS Name:5-(4 4 5 5-Tetramethyl-1 3 2-dioxaborolan-2-yl)-1-benzofuran Material Safety Data Sheet Synonym:None Known Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 519054-55-8 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaboro 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. May cause chemical conjunctivitis. Skin: Causes skin irritation. May be harmful if absorbed through the skin. Ingestion: May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed. Inhalation: Causes respiratory tract irritation. May be harmful if inhaled. 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: 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. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing Media: 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: Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation. Section 7 - HANDLING and STORAGE Handling: Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse. Storage: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. 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# 519054-55-8: 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: Solid Color: pale-yellow Odor: Not available. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: 90-120 deg C@ 0.mmHg Freezing/Melting Point: 63-66 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: C14H17BO3 Molecular Weight: 244 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Stable at room temperature in closed containers under normal storage and handling conditions. Conditions to Avoid: Dust generation. Incompatibilities with Other Materials: Oxidizing agents. Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, borane, oxides of borane. Hazardous Polymerization: Has not been reported. Section 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 519054-55-8 unlisted. LD50/LC50: Not available. Carcinogenicity: 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-benzofuran - 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: XI Risk Phrases: R 36/37/38 Irritating to eyes, respiratory system and skin. Safety Phrases: S 6 Keep under nitrogen. S 23 Do not inhale gas/fumes/vapour/spray. 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# 519054-55-8: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 519054-55-8 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 519054-55-8 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): R36/37/38
• 安全声明 (欧洲): S26-S37/39
• 海关编码: 2934999090

海关

海关编码	2934999090
中文概述	2934999090. 其他杂环化合物. 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
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%