20825-89-2

• 常用中文名：3,4-二氢-2H-1,5-苯并二氧七环-7-甲酸
• 常用英文名：3,4-dihydro-2h-1,5-benzodioxepine-7-carboxylic acid
• CAS号：20825-89-2
• 分子式：C₁₀H₁₀O₄
• 分子量：194.184
• 发布时间：2018-12-23 16:19:03
• 更新时间：2024-01-08 12:09:20

名称

• 中文名: 3,4-二氢-2H-1,5-苯并二氧-7-羧酸
• 英文名: 3,4-dihydro-2h-1,5-benzodioxepine-7-carboxylic acid
• 英文别名: 3,4-dihydro-2H-benzo[b][1,4]dioxepine-7-carboxylic acid; 2H,3H,4H-benzo[b]1,4-dioxepin-7-carboxylic acid; 3,4-DIHYDRO-2H-1,5-BENZODIOXEPINE-7-CARBOXYLIC ACID; 2H-1,5-Benzodioxepin-7-carboxylic acid, 3,4-dihydro-

物化性质

• 密度: 1.3±0.1 g/cm3
• 沸点: 351.0±31.0 °C at 760 mmHg
• 熔点: 145-147ºC
• 分子式: C₁₀H₁₀O₄
• 分子量: 194.184
• 闪点: 142.7±18.3 °C
• 精确质量: 194.057907
• PSA: 55.76000
• LogP: 2.31
• 蒸汽压: 0.0±0.8 mmHg at 25°C
• 折射率: 1.567
• 储存条件: 2~8℃，干燥，密封

MSDS

Name: 3 4-Dihydro-2H-1 5-benzodioxepine-7-carboxylic acid 97% Material Safety Data Sheet Synonym: CAS: 20825-89-2 Section 1 - Chemical Product MSDS Name:3 4-Dihydro-2H-1 5-benzodioxepine-7-carboxylic acid 97% Material Safety Data Sheet Synonym: Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 20825-89-2 3,4-Dihydro-2H-1,5-benzodioxepine-7-ca 97% unlisted Hazard Symbols: None Listed. Risk Phrases: None Listed. Section 3 - HAZARDS IDENTIFICATION EMERGENCY OVERVIEW Not available. Potential Health Effects Eye: May cause eye irritation. Skin: May cause skin irritation. May be harmful if absorbed through the skin. Ingestion: May cause irritation of the digestive tract. May be harmful if swallowed. Inhalation: May cause 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. 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: Use adequate ventilation to keep airborne concentrations low. Exposure Limits CAS# 20825-89-2: 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: pale yellow Odor: Not available. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: Not available. Freezing/Melting Point: 145.2 - 147.3 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: C10H10O4 Molecular Weight: 194 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Not available. Conditions to Avoid: Incompatible materials. Incompatibilities with Other Materials: Strong oxidizing agents. Hazardous Decomposition Products: Carbon monoxide, carbon dioxide. Hazardous Polymerization: Has not been reported Section 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 20825-89-2 unlisted. LD50/LC50: Not available. Carcinogenicity: 3,4-Dihydro-2H-1,5-benzodioxepine-7-carboxylic acid - 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: Not available. Risk Phrases: Safety Phrases: S 24/25 Avoid contact with skin and eyes. WGK (Water Danger/Protection) CAS# 20825-89-2: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 20825-89-2 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 20825-89-2 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
• 海关编码: 2932999099

海关

海关编码	2932999099
中文概述	2932999099. 其他仅含氧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
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%