Pale yellow powder, slightly irritating; soluble in water, ethanol, acetone, etc.; used in the synthesis of reactive dye and acid dye intermediates, especially suitable for the preparation of bright color dyes. Hazard Class: General chemicals; skin irritation
Chinese alias：4,4'-二氨基苯磺酰替苯胺（DASA）
English alias：4,4'-Diaminobenzenesulphanilide
Reactive dye/acid dye intermediate; used in the synthesis of high fastness reactive dyes (such as double reactive group dyes), acid dyes, suitable for dyeing cotton, wool, silk and other fibers, enhance the washing fastness and rubbing fastness of dyes
| No. | Test Item | Wet Product | Dried Product |
| 1 | Appearance | Brownish-red to reddish-white paste | Grayish-white to reddish-white powder |
| 2 | Content /% | ≥70.00 | ≥93.00 |
| 3 | Purity /% | ≥95.00 | ≥95.00 |
| 4 | Acid-insoluble matter /% | ≤0.20 | ≤0.20 |
Address: Block B, Interstellar Center, Yuhua District, Shijiazhuang City, Hebei Province
