Pigment Red 166 (Diarylide Scarlet)
CAS 3905-19-9
In StockMOQ
25 kg
Lead Time
7–14 days
Packaging
25 kg paper bags
Specifications
| Density | 1.38 g/cm³ |
| Appearance | bright red powder |
| Color Index | PR 166 |
| Lightfastness | 6–7 (ISO 105-B02) |
| Chemical Class | Disazo condensation |
| Heat Stability | 200°C |
| Oil Absorption | 40–55 g/100g |
| Hue Angle (°h) | 20–25 |
FAQ
PR 166 itself is not regulated as food-safe; formulation compliance depends on binder, solvent, and migration limits. Consult EuPIA or FDA 21 CFR guidelines and request a migration test certificate from your ink supplier.
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