海关参考信息
- 2905122000-异丙醇
2905310000-1,2-乙二醇
2905320000-1,2-丙二醇
2905399001-1,3-丙二醇 - 💡 提示:海关信息按照顺序优先匹配,如需确认的海关信息,请参考相关资料。
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专利信息
专利号:RU-2186055-C2
优先权日:1995-05-24
标 题 :Method of synthesis of derivatives 3-carboxy-4-hydroxybenzaldehyde, method of synthesis of 4-hydroxybenzaldehyde, methods of synthesis of vanillin and ethylvanillin
专利号:RU-2164911-C2
优先权日:1995-02-20
标 题:Method of synthesis of substituted 4-hydroxybenzaldehyde