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CAS RN: 333717-40-1 | 产品编码: E1306
O-[(Ethoxycarbonyl)cyanomethylenamino]-N,N,N',N'-tetramethyluronium Hexafluorophosphate
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技术规格
| Appearance | White to Almost white powder to crystal |
| Purity(HPLC) | min. 98.0 area% |
| Purity(with Total Nitrogen) | min. 98.0 % |
| Melting point | 129.0 to 133.0 °C |
| NMR | confirm to structure |
物性（参考值）
| 熔点 | 132 °C |
GHS
| 象形图 |
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| 信号词 | Warning |
| 危险性说明 | H302 + H312 + H332 : Harmful if swallowed, in contact with skin or if inhaled. H315 : Causes skin irritation. H319 : Causes serious eye irritation. |
| 防范说明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P261 : Avoid breathing dust/ fume/ gas/ mist/ vapors/ spray. P270 : Do not eat, drink or smoke when using this product. P271 : Use only outdoors or in a well-ventilated area. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection. 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. P332 + P313 : If skin irritation occurs: Get medical advice/ attention. P301 + P312 + P330 : IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth. P302 + P352 + P312 : IF ON SKIN: Wash with plenty of water.Call a POISON CENTER/doctor if you feel unwell. P304 + P340 + P312 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/doctor if you feel unwell. |
相关法规
运输信息
| HS编码* | 2928.00-000 |
应用
Condensing Agent with Less Epimerization
Experimental procedure: HOTU (0.25 mmol) is added to a mixture of Cbz-Phe-OH (0.25 mmol), H-Ala-OCH3·HCl (0.25 mmol) and N-methylmorpholine (0.75 mmol) in dry acetonitrile (5 mL) at 0 °C. The reaction mixture is stirred at the same temperature for 1 h and then at room temperature for 2 h. EtOAc (50 mL) is added and the mixture is subsequently washed with 10% aqueous HCl (v/v), saturated aqueous Na2CO3 and saturated aqueous NaCl solution (2 × 10 mL). Finally, the organic solvent is dried with anhydrous Na2SO4, filtered, and the solvent is removed under reduced pressure. The gummy residue is dried under vacuum to obtain 1 (> 99% yield, DL < 1%).
References
- Synthesis of 2-(4,6-Dimethoxy-1,3,5-triazin-2-yloxyimino) Derivatives: Application in Solution Peptide Synthesis
参考文献