国产一区二区三区露脸,操妞视频黄色网站观看,国内精品视频在线观看,成都影院手机在线观看免费,又色又爽又黄的三级视频在线观看,91视频网站在线观看,日本人妻一区二区三区在线视频,国产精品五十路在线观看

English name

1-benzyl-4-hydroxy-2-methyl-1H-benzo[d]imidazole-6-carboxylic acid

CAS No.

1640981-19-6

Molecular formula

C₁₆H₁₄N₂O₃

Structural formula

Molecular weight

282.29

Quality standard

Appearance

White crystal

Purity

≥97%

Loss on drying

≤0.5%