Cleve's Acid 6,4 (1-Naphthylamine-6-Sulfonic Acid)
Cleve's Acid 6,4 is a naphthylamine monosulfonic acid used as a diazo component in the synthesis of direct and acid azo dyes with blue and navy shade ranges. The 6-position sulfonic group on the 1-naphthylamine skeleton directs specific coupling geometry that yields characteristic deep blue colorations with good wash and light fastness. Chemzip supplies this specialty intermediate for high-performance dye formulations.
Технические характеристики
| appearance | Brown crystalline solid |
| purity (%) | ≥92.0 |
| moisture (%) | ≤4.0 |
| coupling activity (relative %) | ≥95 |
Области применения
- Navy and royal blue direct dye synthesis
- Acid dye intermediate for blue wool shades
- Chrome mordant dye synthesis
- Reactive dye building block for navy shades
- Leather dye for cattlehide and split leather
Особенности продукта
- Unique isomer structure producing characteristic deep blue dye shades
- Coupling activity tested per batch for reproducible deep-blue formulations
- Well-suited for chrome complexation to enhance lightfastness
- Available in 25 kg and 200 kg fiber drum packaging
