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CAS RN: 5222-73-1 | 产品编码: D2099
3,4-Dimethoxy-3-cyclobutene-1,2-dione
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技术规格
| Appearance | White to Almost white powder to crystal |
| Purity(GC) | min. 98.0 % |
| Melting point | 55.0 to 58.0 °C |
| NMR | confirm to structure |
物性（参考值）
| 熔点 | 56 °C |
GHS
| 象形图 |
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| 信号词 | Danger |
| 危险性说明 | H315 : Causes skin irritation. H319 : Causes serious eye irritation. H317 : May cause an allergic skin reaction. H334 : May cause allergy or asthma symptoms or breathing difficulties if inhaled. |
| 防范说明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P261 : Avoid breathing dust/ fume/ gas/ mist/ vapors/ spray. P272 : Contaminated work clothing should not be allowed out of the workplace. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ eye protection/ face protection. P284 : Wear respiratory protection. P302 + P352 : IF ON SKIN: Wash with plenty of water. P342 + P311 : If experiencing respiratory symptoms: Call a POISON CENTER/doctor. P337 + P313 : If eye irritation persists: Get medical advice/ attention. P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P362 + P364 : Take off contaminated clothing and wash it before reuse. P304 + P340 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. P333 + P313 : If skin irritation or rash occurs: Get medical advice/ attention. |
相关法规
运输信息
| HS编码* | 2914.69-000 |
应用
Benzoquinone Synthon
References
- H. W. Moore, S. T. Perri, J. Org. Chem. 1988, 53, 996.
- L. S. Liebeskind, S. Iyer, C. F. Jewell, Jr., ibid. 1986, 51, 3065.
- S. T. Perri, L. D. Foland, O. H. W. Decker, H. W. Moore, ibid. 1986, 51, 3067.
- S. T. Perri, H. J. Dyke, H. W. Moore, ibid. 1989, 54, 2032.
- M. W. Reed, H. W. Moore, ibid. 1988, 53, 4166.
- S. T. Perri, H. W. Moore, Tetrahedron Lett. 1987, 28, 4507.
- M. W. Reed, D. J. Pollart, S. T. Perri, L. D. Foland, H. W. Moore, J. Org. Chem. 1988, 53, 2477.
参考文献
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技术规格
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