精品综合久久久久久888-国产三级韩国三级日产三级-久久在线-国产偷v国产偷v亚洲-99性视频-成人毛片在线-国产精品无人区一区二区三区-欧美a在线观看-西西人体做爰大胆性自慰-国产又色又爽又黄刺激视频-日本黄色不卡视频-在线二区-九九精品久久-99ri国产精品-91久久免费

Congo Red

Alias:

C.I. 22120; C.I. Direct Red 28; C.I. Direct Red 28, disodium salt; C.I. Direct Red 28, disodium salt (8CI); Congo red; Direct Red 28;

English name:

Congo Red

Alias:

C.I. 22120;

CAS RN:

573-58-0

EINECS No.:

209-358-4

Molecular formula:

C₃₂H₂₂N₆Na₂O₆S₂

Molecular weight:

696.6632

Molecular structure:

Melting point:

360℃

Solubility:

Soluble

Uses:

As acid-base indicator, adsorption indicator and biological stain