Direct Red 16
- CAS NO.：6227-02-7
- Empirical Formula: C26H20N5NaO8S2
- Molecular Weight: 617.58
- MDL number: MFCD00071860
- EINECS: 228-323-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-31 14:38:37
What is Direct Red 16?
Preparation
aniline diazo, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupled its product to diazo, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.
Flammability and Explosibility
Non flammable
Properties and Applications
red. Soluble in water for product red, slightly soluble in ethanol peach pink, insoluble in other organic solvents. The strong sulfuric acid for blue, red to orange diluted to brown, and a red precipitate.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 4 | 3-4 | 2 | 1-2 | 1 | ||
| AATCC | 4 | 3 | 1-2 | 1 | 1 | ||
Properties of Direct Red 16
| Boiling point: | 1099.06℃[at 101 325 Pa] |
| Density | 1.683[at 20℃] |
| vapor pressure | 0Pa at 25℃ |
| Water Solubility | 3.93g/L at 20℃ |
| EPA Substance Registry System | C.I. Direct Red 16, disodium salt (6227-02-7) |
Safety information for Direct Red 16
Computed Descriptors for Direct Red 16
Direct Red 16 manufacturer
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