Internal Standard for AB SIM Back Catalog number: 94541 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 33171 Dimethylamine Price on request 675577 Thiobencarb, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 61254 Aroclor 1254 in Transformer Oil Price on request