2,4,6-Trimethylbenzoyldiphenylphosphine oxide (TPO)

Product Description
Product | 2,4,6-Trimethylbenzoyldiphenylphosphine oxide (TPO) |
CAS | 75980-60-8 |
Formula | C22H21O2P |
Synonym | Diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide, Phosphine oxide, diphenyl (2,4,6-trimethylbenzoyl)-, TPO, Methanone, (diphenylphosphinyl)(2,4,6-trimethylphenyl)-, diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, 75980-60-8, (Diphenylphosphoryl)(mesityl)methanone, Phosphine oxide, diphenyl(2,4,6-trimethylbenzoyl)-, EINECS 278-355-8, 2,4,6-Trimethylbenzoyldiphenylphosphine oxide, diphenyl(2,4,6-trimethylbenzoyl)phosphineoxide, VFHVQBAGLAREND-UHFFFAOYSA-N, diphenyl (2,4,6-trimethylbenzoyl)phosphine oxide, 2,4,6-Trimethyl-Benzoyl-Diphenyl-, SBB057714, AK-72963, 2,4,6-trimethyl benzoyldiphenyl phosphine oxide, diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone, (diphenylphosphoroso)(2,4,6-trimethylphenyl)methanone, di(phenyl)phosphoryl-(2,4,6-trimethylphenyl)methanone, 596818-40-5, UNII-B9EIM2D97X, diphenylphosphino[(2,4,6-trimethylphenyl)carbonyl]-1-one, Photocure TPO, TMDPO, trimethylbenzoyl diphenylphosphine oxide |
Typical Product Specifications
Molecular weight | 349 g/mol. |
Assay | 98% min (HPLC). |
Acid Value, mg KOH/g | 4 max. |
Loss on Drying | 0.5% max. |
Appearance | Yellow crystalline powder. |
Clarity & Color of Solution | Clear solution. |
Melting Point | 87-93 deg C. |
Purity | 99% |
Volatile | 0.2% Max |
Acid Test | 0.5% Max |
Clarity | Clear |
Chemical Structure | ![]() |
Notes | Packaging: 20 Kgs net/fiber drum. Applications: As a highly efficient photoinitiator for UV-curable systems. Storage: Shelf life for at least 1 year when it?s stored in closed containers in room temperature and dry conditions. Use: SKIN CONDITIONING |
Class | Inorganic Chemicals: Nitrates, Phosphates, Oxides & more, Toxic Release Inventory (TRI) Chemicals |

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