| 发明名称 |
STABILIZATION METHOD OF 5,6,7,8-TETRAHYAROFOLIC ACID FOR STORAGE |
| 摘要 |
5,6,7,8-tetrahydrofolic acid (I) was stored stably at low temperature in freeze-solidification of its alkali solution or treatment of its powder with deoxidizing agent. When (I) having purity, 88.8%, was stored using deoxidizing agent under nitrogen gas, its purity became 88% after 40-day, otherwise 70.6%.
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| 申请公布号 |
KR880000092(B1) |
申请公布日期 |
1988.02.23 |
| 申请号 |
KR19870005236 |
申请日期 |
1987.05.26 |
| 申请人 |
MITSUI TOATSU CHEMICALS, INC. |
发明人 |
HIREI, YUTAKA;TORISU, MASAAKI;NAGAYOSHI ERI |
| 分类号 |
C07D471/04;C07D475/04;C07D487/04;(IPC1-7):C07D487/04 |
主分类号 |
C07D471/04 |
| 代理机构 |
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