Photoinitiator TPOPhotoinitiator 4,6

• Order Code: TPO • Type: Photoinitiator • Chemical Name: 2,4,6-Trimethylbenzoyl-diphenylphosphine oxide (TPO) • CAS: 75980-60-8 • Molecular Formula: C22H21O2P • Brand: Tianjin Jiuri (JRcure 1108) • Acylphosphine oxide photoinitiator for UV/LED systems, excellent deep and through cure • Low yellowing, suitable for white and clear systems • Appearance: Yellow crystals • Purity: ≥99% • Melting Point: 91-95C • Loss on Drying: ≤0.2% • Acid Value: ≤0.5 mg KOH/g • Absorption Range: 350-400 nm (up to 420 nm) • Application: UV/LED inks and coatings; thick-film and pigmented UV systems; 3D printing resins