1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester
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1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester 속성
- 녹는점
- 130-135°C
- 끓는 점
- 471.6±25.0 °C(Predicted)
- 밀도
- 1.21±0.1 g/cm3(Predicted)
- 저장 조건
- under inert gas (nitrogen or Argon) at 2–8 °C
- 용해도
- 클로로포름(약간 용해됨), 에틸아세테이트(약간 용해됨)
- 물리적 상태
- 고체
- 물리적 상태
- 단단한 모양
- 산도 계수 (pKa)
- 6.73±0.10(Predicted)
- 색상
- 미색부터 페일 베이지까지
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| HS 번호 | 2933998090 |
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| 그림문자(GHS): |
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| 신호 어: | Warning | |||||||||||||||||||||
| 유해·위험 문구: |
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| 예방조치문구: |
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1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester C화학적 특성, 용도, 생산
화학적 성질
Brown Solid용도
1-Methyl-5-amino-1H-benzimidazole-2-butanoic Acid Ethyl Ester is a Bendamustine impurity.Synthesis
In the hydrogenation reaction kettle by adding 50 g 1 - methyl -5 - nitro - 1H - benzimidazole -2 - butyric acid ethyl ester, 2.5 g 5% palladium/carbon, 1.3 L methanol, 475 ml ethyl acetate, hydrogen pressure control in the 0.1 - 0.2 mpa, reaction solution is 25 °C reaction 15 hours, TLC monitoring endpoint of the reaction to the reaction is complete. The fluid in a 35 °C decompression filter collects the filtrate; the filtrate is concentrated under reduced pressure to dry after adding 75 ml ethyl acetate, 70 °C stirring for 0.5 hours. After that, the mixture was to 5 °C stirring for 0.5 hours, for 5 °C standing crystallization for 2 hours, filtering, washing the filter cake with acetic acid ethyl ester, filtration cake at 50 °C decompression drying for 5 hours to afford 1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester 35 g, yield 77.8%.
1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester 준비 용품 및 원자재
원자재
준비 용품
1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester 공급 업체
글로벌( 203)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 |
sales@capotchem.com | China | 29797 | 60 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 |
info@dakenam.com | China | 15928 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21695 | 55 |
| Hangzhou FandaChem Co.,Ltd. | 008657128800458; +8615858145714 |
fandachem@gmail.com | China | 9348 | 55 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 |
ivan@atkchemical.com | China | 32480 | 60 |
| Lianyungang happen teng technology co., LTD | 15950718863 |
wang666xt@163.com | CHINA | 295 | 58 |
| career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 58 |
| Jinan Shengqi pharmaceutical Co,Ltd | 86+18663751872 |
christine@shengqipharm.com | CHINA | 491 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
| Xiamen AmoyChem Co., Ltd | +86-592-6051114 +8618959220845 |
sales@amoychem.com | China | 6387 | 58 |