Red crystalline powder, non-toxic; slightly soluble in water, soluble in ethanol, acetone, benzene, etc., easily soluble in hot concentrated sulfuric acid; a core intermediate of anthraquinone dyes, used in the synthesis of vat dyes, reactive dyes, disperse dyes, suitable for dyeing cotton, hemp, chemical fiber. Hazard Class: General chemicals; skin irritation
Chinese alias：
English alias：1,4-Diaminoanthraquinone；1,4-Diamino-9,10-anthraquinone
Core intermediate of anthraquinone dyes; used in the synthesis of vat dyes (such as Vat Blue, Vat Violet), reactive dyes, disperse dyes, suitable for dyeing cotton, hemp, chemical fiber and other fibers, ensure high fastness and weather resistance of dyes
| No. | Item | Specification |
| 1 | Appearance | Dark purple to black crystalline powder |
| 2 | Purity (HPLC Area Normalization) | ≥97.0% |
| 3 | Water Content | ≤0.50% |
| 4 | Ash Content | ≤0.50% |
| 5 | Main Single Impurity (e.g., 1-Amino-4-hydroxyanthraquinone) | ≤1.0% |
| 6 | Total Impurities | ≤2.0% |
| 7 | Melting Point | 270～273℃ (decomposition) |
| 8 | o-Nitroaniline /% | ≤0.30 |
| 9 | High Boiling Residue /% | ≤0.10 |
| 10 | Moisture Content (Mass Fraction) /% | ≤0.50 |
Address: Block B, Interstellar Center, Yuhua District, Shijiazhuang City, Hebei Province
