29668-43-7

• 常用中文名：2,3-二氢-1,4-苯并二氧-5-甲醛
• 常用英文名：2,3-DIHYDRO-1,4-BENZODIOXINE-5-CARBALDEHYDE
• CAS号：29668-43-7
• 分子式：C₉H₈O₃
• 分子量：164.158
• 发布时间：2018-12-30 11:54:58
• 更新时间：2024-01-09 08:58:26

名称

• 中文名: 2,3-二氢-1,4-苯并二氧-5-甲醛
• 英文名: 2,3-dihydro-1,4-benzodioxine-5-carbaldehyde
• 英文别名: 2,3-dihydro-1,4-benzodioxin-5-carboxaldehyde; 2,3-DIHYDRO-1,4-BENZODIOXINE-5-CARBALDEHYDE; 2,3-Dihydro-benzo[1,4]dioxine-5-carbaldehyde; 2H,3H-benzo[e]1,4-dioxane-5-carbaldehyde; 2,3-Dihydrobenzo[b][1,4]dioxine-5-carbaldehyde; 2,3-dihydro-1,4-benzodioxin-5-carbaldehyde; 5-formyl-2,3-dihydro-1,4-benzodioxin; 1,4-benzodioxan-5-carbaldehyde; 1,4-Benzodioxin-5-carboxaldehyde, 2,3-dihydro-; 2,3-ethylenedioxybenzaldehyde

物化性质

• 密度: 1.3±0.1 g/cm3
• 沸点: 283.6±29.0 °C at 760 mmHg
• 熔点: 62ºC
• 分子式: C₉H₈O₃
• 分子量: 164.158
• 闪点: 116.1±10.7 °C
• 精确质量: 164.047348
• PSA: 35.53000
• LogP: 1.56
• 外观性状: 固体
• 蒸汽压: 0.0±0.6 mmHg at 25°C
• 折射率: 1.588
• 储存条件: 2-8°C

MSDS

Name: 2 3-Dihydro-1 4-benzodioxine-5-carbaldehyde Material Safety Data Sheet Synonym: None Known CAS: 29668-43-7 Section 1 - Chemical Product MSDS Name:2 3-Dihydro-1 4-benzodioxine-5-carbaldehyde Material Safety Data Sheet Synonym:None Known Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 29668-43-7 2,3-Dihydro-1,4-benzodioxine-5-carbald unlisted Hazard Symbols: None Listed. Risk Phrases: None Listed. Section 3 - HAZARDS IDENTIFICATION EMERGENCY OVERVIEW The toxicological properties of this material have not been fully investigated. 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. The toxicological properties of this substance have not been fully investigated. May be harmful if swallowed. Inhalation: May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. May be harmful if inhaled. Chronic: No information found. Section 4 - FIRST AID MEASURES Eyes: In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Get medical aid. Skin: In case of contact, flush skin with plenty of water. Remove contaminated clothing and shoes. Get medical aid if irritation develops and persists. Wash clothing before reuse. Ingestion: If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Get medical aid. Inhalation: If inhaled, remove to fresh air. 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 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. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions. Provide ventilation. Section 7 - HANDLING and STORAGE Handling: Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. 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# 29668-43-7: 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: 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: Not available. Odor: Not available. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: Not available. Freezing/Melting Point: 59 - 62 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: C9H8O3 Molecular Weight: 164.16 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Stable under normal temperatures and pressures. Conditions to Avoid: Dust generation. 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# 29668-43-7 unlisted. LD50/LC50: Not available. Carcinogenicity: 2,3-Dihydro-1,4-benzodioxine-5-carbaldehyde - 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: Not available. Risk Phrases: Safety Phrases: S 24/25 Avoid contact with skin and eyes. WGK (Water Danger/Protection) CAS# 29668-43-7: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 29668-43-7 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 29668-43-7 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): Xn

合成路线

24677-78-9 106-93-4 ~89% 29668-43-7

文献：Grudzien, Krzysztof; Malinska, Maura; Barbasiewicz, Michal Organometallics, 2012 , vol. 31, # 9 p. 3636 - 3646

274910-19-9 ~88% 29668-43-7

文献：Allergan, Inc. Patent: US2006/69144 A1, 2006 ; Location in patent: Page/Page column 19-20 ; US 20060069144 A1

624-73-7 24677-78-9 ~93% 29668-43-7

文献：Deveau, Amy Morin; Macdonald, Timothy L. Tetrahedron Letters, 2004 , vol. 45, # 4 p. 803 - 807

24677-78-9 ~% 29668-43-7

文献：US4722931 A1, ;