Air Spiking Standard Back Catalog number: 91564 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2515.7-500MG Salicylic acid (2-Hydroxybenzoic acid), neat, Solvent-neat, Unit 500mg, # of units-1, Cas.no. 69-72-7 Price on request 2971.14-100-IO 1,1,1-Trichloro-2,2-bis(4-chlorophenyl-d4)ethane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 93952-18-2 Price on request TCC N-(4-chlorophenyl)-N'-(3,4-dichlorophenyl)urea , 1.2ml x 50ug/ml, methanol Price on request