525 Internal Standard Back Catalog number: 94212 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673442 Spiroxamine, 10 µg/ml, Acetonitrile, 10ml Price on request 675407 Azinphos-ethyl, 10.0 µg/ml, Acetonitrile, 10ml Price on request 677418 2,4-DB, 100 µg/ml, Acetonitrile, 1ml Price on request