NA/599 FULL PUBLIC REPORT Phosphine oxide, phenylbis (2,4,6-trimethylbenzoyl)- APPLICANT Ciba Specialty Chemicals of 235 Settlement Road THOMASTOWN VIC 3074 has submitted a standard notification statement in support of their application for an assessment certificate for Phosphine oxide, phenylbis (2,4,6-trimethylbenzoyl)- IDENTITY OF THE CHEMICAL phosphine oxide, phenylbis (2,4,6- Chemical Name: trimethylbenzoyl)- Chemical Abstracts Service (CAS) Registry No.: 162881-26-7 TKA 40135/CGI 819 Other Names: Trade Name: Irgacure 819 ® Molecular Formula: C26H27O3P Structural Formula: Molecular Weight: 418.5 Spectral Details: UV/Vis spectrophotometry in neutral, basic, and acid solution: neutral solution: = 282 nm (max = 7 931) max 296 nm (max = 7 953) basic solution: = 219 nm (max = 27 288) max 265 nm (max = 7 281) acidic solution: = 282 nm (max = 7 908), max 297 nm (max = 7 945) shoulder at 233 nm in spectra measured under neutral and acid conditions
NA/599 FULL PUBLIC REPORT Phosphine oxide, phenylbis (2,4,6-trimethylbenzoyl)- APPLICANT Ciba Specialty Chemicals of 235 Settlement Road THOMASTOWN VIC 3074 has submitted a standard notification statement in support of their application for an assessment certificate for Phosphine oxide, phenylbis (2,4,6-trimethylbenzoyl)- IDENTITY OF THE CHEMICAL Chemical Name: phosphine oxide, phenylbis (2,4,6- trimethylbenzoyl)- Chemical Abstracts Service (CAS) Registry No.: 162881-26-7 Other Names: TKA 40135/CGI 819 Trade Name: Irgacure ® 819 Molecular Formula: C26H27O3P Structural Formula: Molecular Weight: 418.5 Spectral Details: UV/Vis spectrophotometry in neutral, basic, and acid solution: neutral solution: max = 282 nm (max = 7 931) 296 nm (max = 7 953) basic solution: max = 219 nm (max = 27 288) 265 nm (max = 7 281) acidic solution: max = 282 nm (max = 7 908), 297 nm (max = 7 945) shoulder at 233 nm in spectra measured under neutral and acid conditions
NA599FR.docx