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 Meloxicam Labeled 13C,D3 Catalog Number: M-1190 This compound comes with a comprehensive Certificate of Analysis. See details 5-Methyltetrahydrofolic acid calcium salt Catalog Number: M-1198 This compound comes fully certified. See details Metoprolol Tartrate Catalog Number: M-2130 This compound comes with a comprehensive Certificate of Analysis. See details Metoprolol Tartrate Labeled d7 Catalog Number: M-2131 This compound comes with a comprehensive Certificate of Analysis. See details Mefloquine Labeled d7 Catalog Number: M-2162 This compound comes fully certified. See details Carboxy Mefloquine Catalog Number: M-2163 This compound comes fully certified. See details 6 - Hydroxymelatonin Sulfate Catalog Number: M-2214 This compound comes with a comprehensive Certificate of Analysis. See details 6-Hydroxymelatonin Sulfate Labeled d4 Catalog Number: M-2215 This compound comes with a comprehensive Certificate of Analysis. See details 6 - Hydroxymelatonin Catalog Number: M-2216 This compound comes with a comprehensive Certificate of Analysis. See details 6 - Hydroxymelatonin Labeled d4 Catalog Number: M-2217 This compound comes with a comprehensive Certificate of Analysis. See details Mesalamine Catalog Number: M-2311 This compound comes with a comprehensive Certificate of Analysis. See details Mesalamine Labeled d3 Catalog Number: M-2312 This compound comes with a comprehensive Certificate of Analysis. See details Mesocarb Catalog Number: M-2536 This compound comes with a comprehensive Certificate of Analysis. See details Methyl Riluzole Catalog Number: M-2718 This compound comes fully certified. See details D-threo methylphenidate Hydrochloride Catalog Number: M-2720 This compound comes with a comprehensive Certificate of Analysis. See details L-threo methylphenidate Hydrochloride Catalog Number: M-2721 This compound comes with a comprehensive Certificate of Analysis. See details Misoprostol Acid - Labeled d3 Catalog Number: M-2726 This compound comes fully certified. See details Modafinil Acid Catalog Number: M-2746 This compound comes fully certified. See details Modafinil Sulfone Catalog Number: M-2833 This compound comes fully certified. See details Methylene Blue Bromide Labeled d12 Catalog Number: M-2910 This compound comes fully certified. See details (Methylthio) methanethiol Catalog Number: M-6922 This compound comes with a comprehensive Certificate of Analysis. See details Mitoxantrone Acetate Labeled d8 Catalog Number: M-6928 This compound comes with a comprehensive Certificate of Analysis. See details 1’-Hydroxy Midazolam Catalog Number: M-7396 This compound comes fully certified. See details 4-Hydroxy Midazolam Catalog Number: M-7452 This compound comes fully certified. See details 4-Hydroxy Midazolam - Labeled d3 Catalog Number: M-7477 This compound comes fully certified. See details 5-Methyltetrahydrofolic acid Catalog Number: M-7496 This compound comes fully certified.