Mixed Calibration Kit Back Catalog number: 53052 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2361.24-100-IO Di-n-octyl phthalate-3,4,5,6-d4, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 93952-13-7 Price on request 3391.9-100-CY Endosulfan Price on request 11319.13-10MG Melatonin,neat,neat,10mg, Price on request