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3-(2,2,2-Trimethylhydrazine)methylpropionate bromide
- русский язык имя
- английское имя3-(2,2,2-Trimethylhydrazine)methylpropionate bromide
- CAS №106966-25-0
- CBNumberCB82464705
- ФормулаC7H17N2O2.Br
- мольный вес241.127
- EINECS463-070-5
- номер MDLMFCD10465251
- файл Mol106966-25-0.mol
химическое свойство
плотность | 1.38 at 20℃ |
давление пара | 5hPa at 20-25℃ |
температура хранения | 2-8°C |
LogP | -3.26 at 24℃ and pH6.2 |
FDA UNII | 7U369DR9PL |
UNSPSC Code | 41116107 |
NACRES | NA.24 |
рисовальное письмо(GHS)
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рисовальное письмо(GHS)
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сигнальный язык
предупреждение
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вредная бумага
H302:Вредно при проглатывании.
H412:Вредно для водных организмов с долгосрочными последствиями.
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оператор предупредительных мер
P264:После работы тщательно вымыть кожу.
P270:При использовании продукции не курить, не пить, не принимать пищу.
P273:Избегать попадания в окружающую среду.
P301+P312:ПРИ ПРОГЛАТЫВАНИИ: Обратиться за медицинской помощью при плохом самочувствии.
P501:Удалить содержимое/ контейнер на утвержденных станциях утилизации отходов.
3-(2,2,2-Trimethylhydrazine)methylpropionate bromide химические свойства, назначение, производство
Использование
3-(2,2,2-Trimethylhydrazine)methylpropionate bromide can be used as organic synthesis intermediates and pharmaceutical intermediates, mainly used in laboratory research and development processes and chemical production processes.Синтез
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In a three-necked round bottom flask equipped with a mechanical stirrer, a dropping funnel and a reflux condenser, 172 g (2 mol) of methyl acrylate was added, and under cooling, 132 g (2.2 mol) of 1,1-dimethylhydrazine was added dropwise. After a period of 2 hours, the reaction mixture was heated at the same temperature until methyl 3-(2,2-dimethylhydrazo)propionate was formed (monitored by GM-MS). The above methyl 3-(2,2-dimethylhydrazinyl)propanoate product was dissolved in 40% ethanol (350 ml), cooled to 0 ° C, and methyl bromide (189 g, 1.99 mol) was passed for 1 hour, and the temperature was continued. After stirring for 0, 5 hours, the yellow or brown precipitate was filtered off, and the crude product was washed with acetone (1000 ml). The crude 3-(2,2,2-trimethylhydrazine) propionate methyl bromide was dried (265.7 g, yield 91.0%); the crude product was recrystallized from ethanol and dried to give 219.8 g of pale yellow crystalline powder. The rate is 75.3%, the melting point is 130-132°C, and the main content is 103.3%. (The stability is verified by the stability test. The stability is poor, the color gradually becomes deeper. Because the trace impurities contained in the product have a great influence on the product, it is found to have molecular decay and various indicators. Larger, the product is valid for up to two years).
3-(2,2,2-Trimethylhydrazine)methylpropionate bromide поставщик
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