国产真实乱人偷精品视频,91porn极品无码在线播放,特级做a爰片毛片免费69,91久久婷婷人人澡人人澡漫画

Common Name:

SA

Structural Formula:

CAS NO.:

121-57-3

Chemical Name:

4-Aminobenzenesulfonic acid;

Molecular Formula:

C₆H₇NO₃S=73.19

Quality Standard:

HG/T3678－2000

Packing:

40KG/bag(woven bag)

Storage:

avoid light, stored in cool and dry place.

Use:

as intermediate of dyes, perfumes, food pigments, medicines, pesticides and building materials.

Item:

HG/T3678－2000

Appearance:

white to offwhite powder

Assay(total amino value):

≥99.0%