Method 1640 Tuning Standard Back Catalog number: 52147 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2125.12-K-IOX5 Arochlor 1221 , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 11104-28-2 Price on request 673785 Demeton-S-methyl-sulfoxide, 100 µg/ml, Ethyl acet Price on request 680556 1-Hydroxycyclohexyl phenyl ketone, 100mg Price on request