Quality Control Standard, 1000µg/ml in AC, 1ml Back Catalog number: ISO/DIS9377-4-1 Availability: In the manufacturer's stock Price on request - + Recommended 675811 Ethephon, 10 µg/ml, Acetonitrile, 10ml Price on request 687726 Lamotrigine, 100mg Price on request 67015 Sulfa Drugs Price on request