QC Standard 2 Back Catalog number: 56085 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674057 Phenkapton, 10.0 µg/ml, Acetonitrile, 10ml Price on request 8484.15-50MG Metoprolol (free base),neat,neat,50mg, Price on request 675991 Diclofop-methyl, 100 µg/ml, Cyclohexane, 5ml Price on request