4,4'-Diaminodiphenyl sulfide, 250mg Back Catalog number: 676773 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 95865 Deuterated PAH Standard, 100µg/ml in IO, 1ml Price on request GUM 11.3 Glycerol, Surface tension 63mN/m at 20°C, 30ml Price on request 680136 1,2,3,5-Tetrachlorobenzene, 100 µg/ml, Methanol, Price on request