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Molecular formula: C₂₆H₁₆O₂S₂₂
Molecular weight: 424.54
CAS number : 13676-91-0 
Structural formula:

EINECS號(hào)：237-167-6
Appearance character: red light yellow powder.
Color light: approximation.
Coloring power: ±5%.
Weight loss (105 ℃): ≤ 1.0%.
Ash: ≤ 0.5%.
Main uses: plastic, ink coloring