post date: oct 19,2021   expiry date: apr 17,2022   detailed description: specs:appearance:colorless to light yellow thick liquid; uses　　it is ...

  post date: oct 19,2021   expiry date: apr 17,2022   detailed description: specs:appearance:brown to black powder matter;moisture:≤ main ingredi ...

  post date: oct 19,2021   expiry date: apr 17,2022   detailed description: specs:appearance:off-white powder;moisture:≤2%;ph value chemical com ...

  post date: oct 19,2021   expiry date: apr 17,2022   detailed description: cas no. :39660-17-8 appearance: colorless to light yellow transparent ...