Calibration Standard Kit Back Catalog number: 53090 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79427 n-Octatriacontane Price on request 679947 Thiamethoxam Metabolite CGA 353968, 100 µg/ml, Ac Price on request 674622 Ronidazole, 100mg Price on request