Caffeine, EP Reference standard, 70mg Back Catalog number: C0100000 Availability: In the manufacturer's stock Price on request - + Recommended 9497.14-100-ME Propyphenazone, 100µg/ml in MeOH, 1ml Price on request M0600900 Metamizole sodium, EP Reference Standard, 10mg Price on request C10011900 4-Acetylaminoantipyrine, 100mg Price on request