亚洲精品aⅴ在线观看,综合久久狠狠色99h中午,欧美日韩中文 ,天天摸天天爽天天碰天天弄,国外自产拍无码精品视频在线观看,91成人免费福利网

Welcome to visit Changzhou Chengbang Chemical Co., Ltd. official website!

CollectionHomepage中文版

More>>
Butyraldehyde
Product name: Butyraldehyde
CAS NO: 123-72-8
Molecular weight: 72.1057 
EC NO: 204-646-6
Molecular formula: C4H8O
InChI: InChI=1/C4H8O/c1-2-3-4-5/h4H,2-3H2,1H3
Structural formula:
  Order                   Back