超清无码AV毛片,精品国产乱码一区二区三区,视频又长又大又粗又硬3p免费,亚洲日韩精品?∨片无码

Aodi Chemical
Products

4-Chloro-2-trifluoromethylpyridine

Product Name 4-Chloro-2-trifluoromethylpyridine
Product category Pyridine
Structural formula
CAS# 131748-14-6
Content 98%
Exterior Colorless transparent liquid