Calibration Standard Mix 4 Back Catalog number: 53013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1981.12-K-5ME Tri-n-butyltin chloride, 1000µg/mL, Solvent-methanol, Unit 5mL, # of units-1, Cas.no. 1461-22-9 Price on request 680342 Bis(2-ethylhexyl) phthalate, 10.0 µg/ml, Cyclohex Price on request 1634.10-100MG Cimetidine (free base), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 51481-61-9 Price on request