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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)

  • рисовальное письмо(GHS)

    GHS hazard pictograms

  • сигнальный язык

    предупреждение

  • вредная бумага

    H302:Вредно при проглатывании.

    H412:Вредно для водных организмов с долгосрочными последствиями.

  • 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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