Table 1. Test materials.
| Compound | CAS No. | Analytical characterization | Producer |
|---|---|---|---|
| Mixed chlorinated DPP isomers | 84632-67-7 and 88949-44-4 (isomers), 84632-65-5 (mixture) | Extractable fraction <0.4% | BASF Schweiz AG, Switzerland |
| Fine Pigment Red 254 | 84632-65-5 | Extractable fraction 0.5% | BASF Schweiz AG, Switzerland |
| Coarse Pigment Red 254 | 84632-65-5 | Extractable fraction 0.5% | BASF Schweiz AG, Switzerland |
| Coarse meta-chloro DPP | 84632-67-7 | Purity 98.02% | BASF Schweiz AG, Switzerland |
| Fine meta-chloro DPP | 84632-67-7 | Purity 98.04% | BASF Schweiz AG, Switzerland |
| Fine Pigment Red 101 | 1309-37-1 | Iron content 62 g/100 g | BASF SE, Germany |
| Coarse Pigment Red 101 | 1309-37-1 | Not characterized | Huntsman, Italy |