All of our high-purity pharmaceutical reference standards are provided with a comprehensive Certificate of Analysis and all supporting analytical data.

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Sort by: Catalog Number Product Price Default See details cis-9-octadecenylphosphocholine Labeled d9 Catalog Number: O-4330 This compound comes with a comprehensive Certificate of Analysis. See details Olmesartan Acid Catalog Number: O-4365 This compound comes fully certified. See details (R,S) - Oxybutynin Hydrochloride Catalog Number: O-4531 This compound comes fully certified. See details (R) - Desethyl Oxybutynin Hydrochloride Catalog Number: O-4533 This compound comes fully certified. See details (R,S) - Desethyl Oxybutynin Catalog Number: O-4535 This compound comes fully certified. See details (R) - Desethyl Oxybutynin Labeled d5 Catalog Number: O-4537 This compound comes fully certified. See details (R) - Oxybutynin Labeled d10 Catalog Number: O-4539 This compound comes fully certified. See details (R,S) - Desethyl Oxybutynin Labeled d5 Catalog Number: O-4540 This compound comes fully certified. See details (R,S) - Oxybutynin Labeled d10 Catalog Number: O-4541 This compound comes fully certified. See details (R,S)-N-Desethyl Oxybutynin Hydrochloride Labeled d5 Catalog Number: O-4549 This compound comes with a comprehensive Certificate of Analysis. See details Omeprazole - Labeled d3 Catalog Number: O-7736 This compound comes fully certified. See details Oxymorphone Catalog Number: O-7745 This compound comes with a comprehensive Certificate of Analysis. See details 6-Beta-Hydroxy Oxymorphone Hydrochloride Catalog Number: O-7749 This compound comes with a comprehensive Certificate of Analysis. See details 6-Beta-Oxymorphol Hydrochloride Labeled d4 Catalog Number: O-7750 This compound comes with a comprehensive Certificate of Analysis.