欧美a级片一区二区在线播放,欧美日韩激情精品蜜桃,国产初高中生视频在线观看,亚洲成av人片在线观看无

Products

People oriented, science and technology first, and win-win cooperation

Naphthol AS-PH

Product name

Naphthol AS-PH

CAS No.

92-74-0

Molecular formula

C19H17NO3

Appearance

Beige powder

Purity

Assay: ≥99.5% (Min)     

Insolubles:≦0.1% (Max)

M.P

≥156°C(Min)

Applications

as an organic pigment intermediate

Package

25kgs pp woven bag