Custom PAH mix, alkylated PAHs 0712.11 1-Methylnaphthalene 0729.12 2,6-Dimethylnaphthalene 0715.12 2-Ethylnaphthalene 0706.13 2,3,5-Trimethylnaphthalene 2736.13 2-Ethyl-6-methylnaphthalene 2480.13 1,2-Dihydro-3,5,8-trimethylnaphthalene 0707.14 1,4,6