QC Standard 2 Back Catalog number: 56085 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended V125003 Verapamil-d7 Hydrochloride, 5mg Price on request C15782500 Oxcarbazepine, certified, 50mg Price on request C12194800 4,4´-Diamino-3,3´-dimethyldiphenyl methane, certified, 0.1g Price on request