Isopropalin, 100 µg/ml, Ethyl acetate, 5ml

4,6-Dimethyldibenzothiophene

Carbaryl

Custom mix of thiophenes,two components in toluene: 0938.8 Benzothiophene 0.2mg/mL 0884.12 Dibenzothiophene 0.4mg/mL