发明名称 |
ULTRAPURE 4-METHYLPYRAZOLE |
摘要 |
Disclosed is an ultrapure 4-methylpyrazole containing less than 0.1% pyrazole and containing less than 10 ppm each of hydrazine and nitrobenzaldehyde. The ultrapure 4-methylpyrazole is prepared by a novel process so that less than 0.01% of ethylvinyl ether is present. |
申请公布号 |
CA2605413(C) |
申请公布日期 |
2014.06.10 |
申请号 |
CA20062605413 |
申请日期 |
2006.03.20 |
申请人 |
ORPHAN MEDICAL, INC. |
发明人 |
REARDAN, DAYTON T.;COMBE, MICHEL D. |
分类号 |
C07D231/12 |
主分类号 |
C07D231/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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