Verification II Standard 1 Back Catalog number: 52019 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679993 6-Hydroxytropinone, 10mg Price on request 9282.28-K-ME Sildenafil citrate,1000 µg base/mL,MeOH,1mL Price on request 680003 Tenuazonic acid mixture of diastereomers, 100 µg/m Price on request