Photoinitiator-TPO-L/2,4,6-trimethylbenzoylphenylphosphonic acid ethyl ester CAS No.:84434-11-7

​Photoinitiator TPO-L (Ethyl 2,4,6-Trimethylbenzoylphenylphosphonate) CAS No.: 84434-11-7 Appearance: Light yellow liquid. ​Specifications ​Purity: ≥99.0% ​Melting Point: 144....

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Introduction

Photoinitiator TPO-L (Ethyl 2,4,6-Trimethylbenzoylphenylphosphonate)

CAS No.: 84434-11-7
Appearance: Light yellow liquid.


Specifications

  • Purity: ≥99.0%
  • Melting Point: 144.5–147 °C
  • Scorch Residue: ≤0.05%
  • Moisture: ≤0.5%

Applications

  • UV-Curable Systems:
    • Used in ​low-yellowing, low-odor formulations for:
      • Screen printing inks, ​lithographic/flexographic inks, ​photoresists, ​overprint varnishes, and ​printing plates.

Packaging & Transportation

  • Standard Packaging: 25 kg/cardboard drum.
  • Custom Packaging: Available per buyer’s request.

Storage

  • Store in a ​dry, ventilated warehouse.
  • Protect from ​direct sunlight, ​moisture, and ​high temperatures.

Summary:
Photoinitiator TPO-L’s ​liquid form and ​low-yellowing properties make it ideal for UV-curable inks and coatings requiring minimal odor and discoloration. Its ​high purity and stability ensure reliable performance in industrial applications.

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