Internal Standard Back Catalog number: 96651 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2564.6-5ML Triethylene glycol, neat, Solvent-neat, Unit 5mL, # of units-1, Cas.no. 112-27-6 Price on request 673926 Cyproconazole, 100 µg/ml, Acetonitrile, 5ml Price on request 10536.22-2.53UGX5 [13C22 15N2]-Tetracycline Price on request