Fluorescent Red 5B

Product Name

Fluorescent Red 5B 

Color Index Name 

Vat Red 41

Chemical Class 

Anthrapyridone‑based

CAS No. 

522‑75‑8

Molecular Formula

C₁₆H₈O₂S₂

Shade 

Blue-shade Red

Tinting Strength

Heat Resistance

280℃

Lightfastness (1–8)

4-5

Weather Fastness (1–5)

3-4

Migration Resistance (1–5)

3

Oil Absorption

Product performance:Excellent solubility in organic solvents and thermoplastic resins, insoluble in water

Main applications: Packaging, decoration, pen making, telecommunications, toys, paint, ink, and coloring of polyester, nylon, etc.