50544-72-4
50544-72-4结构式
- 常用中文名：7-HYDROXY-2,2,8-TRIMETHYL-2,3-DIHYDRO-4H-CHROMEN-4-ONE
- 常用英文名：7-HYDROXY-2,2,8-TRIMETHYL-2,3-DIHYDRO-4H-CHROMEN-4-ONE
- CAS号：50544-72-4
- 分子式：C12H14O3
- 分子量：206.23800
- 发布时间：2016-06-30 15:08:15
- 更新时间：2024-01-09 19:23:30
| 英文名 | 7-hydroxy-2,2,8-trimethyl-3H-chromen-4-one |
|---|---|
| 英文别名 |
2,2,8-trimethyl-7-hydroxychromanone
2,3-dihydro-7-hydroxy-2,2,8-trimethyl-4H-benzopyran-4-one 7-Hydroxy-2,2,8-trimethyl-4-chromanone 7-HYDROXY-2,2,8-TRIMETHYL-2,3-DIHYDRO-4H-CHROMEN-4-ONE 7-hydroxy-2,2,8-trimethyl-2,3-dihydro-4H-benzopyran-4-one 7-Hydroxy-2,2,8-trimethylchroman-4-one |
| 密度 | 1.165 g/cm3 |
|---|---|
| 沸点 | 369.2ºC at 760 mmHg |
| 熔点 | 181ºC |
| 分子式 | C12H14O3 |
| 分子量 | 206.23800 |
| 闪点 | 144.4ºC |
| 精确质量 | 206.09400 |
| PSA | 46.53000 |
| LogP | 2.44440 |
| 折射率 | 1.547 |
Synonym:7-Hydroxy-2,2,8-trimethylchromanon Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
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# 50544-72-4: 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: 172 - 173 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: C12H14O3 Molecular Weight: 206 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, acrid smoke and fumes. Hazardous Polymerization: Has not been reported Section 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 50544-72-4 unlisted. LD50/LC50: Not available. Carcinogenicity: 7-Hydroxy-2,2,8-trimethyl-2,3-dihydro-4H-chromen-4-one - 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# 50544-72-4: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 50544-72-4 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 50544-72-4 is not listed on the TSCA inventory. It is for research and development use only. SECTION 16 - ADDITIONAL INFORMATION N/A |
| 危害码 (欧洲) | Xi |
|---|---|
| 风险声明 (欧洲) | R36/37/38 |
| 安全声明 (欧洲) | 26-36/37/39 |
| 海关编码 | 2932999099 |
|
~95%
50544-72-4 |
| 文献：Timar, Tibor; Hosztafi, Sandor; Jaszberenyi, J. Csaba Acta Chimica Hungarica, 1988 , vol. 125, # 4 p. 617 - 630 |
|
~80%
50544-72-4 |
| 文献：Timar, Tibor; Hosztafi, Sandor; Jaszberenyi, J. Csaba Acta Chimica Hungarica, 1988 , vol. 125, # 4 p. 617 - 630 |
|
~%
50544-72-4 |
| 文献：Timar, Tibor; Hosztafi, Sandor; Jaszberenyi, J. Csaba Acta Chimica Hungarica, 1988 , vol. 125, # 4 p. 617 - 630 |
|
~%
50544-72-4 |
| 文献：Timar, Tibor; Hosztafi, Sandor; Jaszberenyi, J. Csaba Acta Chimica Hungarica, 1988 , vol. 125, # 4 p. 617 - 630 |
| 上游产品 3 | |
|---|---|
| 下游产品 3 | |
| 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% |