Stable Isotopes

Our stable isotope-labelled standards, including deuterated, 13C, and 15N-labelled compounds, are fundamental tools in bioanalytical methods. These isotopes offer unparalleled precision for the quantification and tracking of APIs, metabolites, and impurities. Widely used as internal standards in pharmacokinetic studies, they enhance the accuracy and sensitivity of analytical protocols, making them indispensable in drug development, metabolic research, and environmental studies. Trusted by researchers and bioanalytical laboratories worldwide, our stable isotope standards are recognized for their purity and consistency.
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299 items

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  • Inquire
    SI010010: Abacavir-d4

    SI010010

    Abacavir-d4
  • In Stock
    SI010020: Abiraterone-d4

    SI010020

    Abiraterone-d4
  • Inquire
    SI010021: Abiraterone N-Oxide

    SI010021

    Abiraterone N-Oxide
  • Inquire
    SI010022: Abiraterone Sulfate Sodium Salt

    SI010022

    Abiraterone Sulfate Sodium Salt
  • In Stock
    SI010023: Abiraterone-N-Oxide Sulfate

    SI010023

    Abiraterone-N-Oxide Sulfate
  • In Stock
    SI010030: Acetazolamide-d3

    SI010030

    Acetazolamide-d3
  • In Stock
    SI010050: Amoxicillin-d4

    SI010050

    Amoxicillin-d4
  • In Stock
    SI010060: Apixaban-13C d3

    SI010060

    Apixaban-13C d3
  • In Stock
    SI010070: Apremilast-d5

    SI010070

    Apremilast-d5
  • In Stock
    SI010080: Aprepitant-d4

    SI010080

    Aprepitant-d4
  • In Stock
    SI010090: Aripiprazole-d8

    SI010090

    Aripiprazole-d8
  • In Stock
    SI010110: Atazanavir-d6

    SI010110

    Atazanavir-d6
  • In Stock
    SI010130: Azilsartan-d4

    SI010130

    Azilsartan-d4
  • In Stock
    SI010140: Azithromycin-13C d3

    SI010140

    Azithromycin-13C d3
  • In Stock
    SI010190: Acalabrutinib-d4

    SI010190

    Acalabrutinib-d4
  • In Stock
    SI010191: Acalabrutinib Metabolite [AC-5862]

    SI010191

    Acalabrutinib Metabolite [AC-5862]
  • In Stock
    SI010192: Acalabrutinib Metabolite [AC-5862]-d4

    SI010192

    Acalabrutinib Metabolite [AC-5862]-d4
  • Inquire
    SI010210: Acetylsalicylic Acid-d4

    SI010210

    Acetylsalicylic Acid-d4
  • Inquire
    SI020010: Bacitracin A-d7

    SI020010

    Bacitracin A-d7
  • In Stock
    SI020020: Bazedoxifene-d4 Acetate

    SI020020

    Bazedoxifene-d4 Acetate
  • Inquire
    SI020021: Bazedoxifene-d4 N-Oxide

    SI020021

    Bazedoxifene-d4 N-Oxide
  • In Stock
    SI020030: rac-Bendroflumethiazide-d5

    SI020030

    rac-Bendroflumethiazide-d5
  • Inquire
    SI020040: Bexarotene-d4

    SI020040

    Bexarotene-d4
  • In Stock
    SI020050: Bisoprolol-d5 Hemifumarate

    SI020050

    Bisoprolol-d5 Hemifumarate