洋老外米糕国产一区二区_国产 日韩 中文 欧美_成人永久在线台湾2015_国产精品一区二区?v片_婷婷网亚洲色偷偷男人的天堂_免费无码自拍影视_999久久免费视频_成年香蕉大黄美女美女_欧洲日韩国产综合AV无码_午夜欧美日韩免费一级片

Product Name: 5-Methylpyrazine-2-carboxylic acid
CAS NO.: 5521-55-1
Structural formula.:

Standard: ≥99%
Packaging: 25kg/drum
Customs code: 2933599090
Tax refund: 13%
Use: For the synthesis of glipizide and acipimox, etc.

---

  Next product： 3-Amino-2,6-piperidinedione hydrochloride