Photoinitiator TPO-L (Ethyl(2,4,6-trimethylbenzoyl)phenylphosphinate)

Material Safety Data Sheet (MSDS)

Product Name: Ethyl(2,4,6-trimethylbenzoyl)phenylphosphinate (TPO-L)
CAS Number: 84434-11-7
EC Number: 282-810-6
UN Number: 2810
Revision Date: June 3, 2026
Version: 3.0

Handling and Storage

Handling

• Avoid contact with skin, eyes, and clothing

• Do not breathe vapor or mist

• Use only in well-ventilated areas

• Ground and bond containers when transferring material

Storage

• Store in a cool, dry, well-ventilated area

• Keep container tightly closed

• Store at 2-8°C (35-46°F) under inert gas (nitrogen or argon)

• Keep away from heat, sparks, and open flame

• Do not store near oxidizing agents, acids, or bases

• Shelf life: 24 months when properly stored

Transport Information

UN Number & Classification

• UN 2810: Toxic liquid, organic, n.o.s.

• Class: 6.1 (Toxic)

• Packing Group: III