Phenkapton, 100 µg/ml, Acetonitrile, 1ml

4,4'-Difluorobenzophenone, 100mg

Imbentin-N/040 (n = 1-7) 100mg S-4098 Nonylphenol with 4mol ethyleneoxide

2,3',4',5-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane