1‑Hydroxycyclohexyl Phenyl Ketone (Photoinitiator 184 / Irgacure® 184) – High‑Purity, Non‑Yellowing Type‑I Photoinitiator for UV Coatings, Inks, Adhesives, and 3D Printing Resins

Photoinitiator 184
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1. Product Identification

  • Product Name: Photoinitiator 184

  • Chemical Name: 1-Hydroxycyclohexyl Phenyl Ketone

  • CAS No.:947-19-3

  • Molecular Formula:C₁₃H₁₆O₂

  • Molecular Weight: 204.30 g/mol

2. Physical and Chemical Properties

ItemSpecification
AppearanceWhite crystalline powder
Assay (Purity)≥ 99%
Density1.18 g/cm³
Volatile Content≤ 0.2%
Flash Point325.8 °C

3. Typical Characteristics

  • Excellent photo-reactivity under UV light

  • Low volatility and good thermal stability

  • High efficiency at low dosage

  • Low odor and low yellowing

  • Good compatibility with common UV-curable resins

4. Applications

Photoinitiator 184 is widely used in UV-curable systems, including:

  • UV inks

  • UV coatings

  • UV adhesives

  • Printing inks

  • Clear and pigmented formulations