Stable Isotope Compounds

We provide over 200 stable isotope labeled compounds for use as mass spectroscopy internal standards and for obtaining clearer results when analyzing NMR samples, including many hard to find stable isotope labeled compounds useful for both research and analytical communities. Many of these compounds can also be provided in larger quantities than those listed in the catalog. Please inquire for pricing and availability. We can also provide custom synthesized, labeled versions of nearly any compound that you may need as well as custom versions of our catalog compounds with different substitution patterns or additional labeled atoms. Where applicable labeled and unlabeled CAS numbers are provided. All stable isotopes require overnight shipping methods.

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  1. Reverse Triiodothyronine hydrochloride

    Reverse Triiodothyronine hydrochloride

    Starting at: €59.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >95%

    Shipping: Overnight

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  2. 2-Methoxy estradiol

    2-Methoxy estradiol

    Starting at: €82.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  3. 4-Methoxyestradiol

    4-Methoxyestradiol

    Starting at: €123.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  4. Pregnenolone-[20,21-13C2, 16,16-2H2]

    Pregnenolone-[20,21-13C2, 16,16-2H2]

    Starting at: €172.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Isotopic Incorporation: >99% 13C; >98% 2H

    Purity: >98%

    Shipping: Overnight

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  5. 25-Hydroxyvitamin-D3

    25-Hydroxyvitamin-D3

    Starting at: €308.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  6. Vitamin K3-[2H8]

    Vitamin K3-[2H8]

    Starting at: €342.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Isotopic Incorporation: 98% 2H

    Purity: ≥97%

    Shipping: Overnight

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  7. 25-Hydroxyvitamin-D2

    25-Hydroxyvitamin-D2

    Starting at: €599.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  8. 2-Methoxy-[13C,2H3]-estrone

    2-Methoxy-[13C,2H3]-estrone

    Starting at: €668.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Isotopic Incorporation: 99% 13C; 98% 2H

    Purity: >98%

    Shipping: Overnight

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  9. 4-Methoxy-[13C,2H3]-estrone

    4-Methoxy-[13C,2H3]-estrone

    Starting at: €668.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Isotopic Incorporation: 99% 13C; 98% 2H

    Purity: >98%

    Shipping: Overnight

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  10. 3-Iodothyronamine-[ethylamino-1,1,2,2-2H4] hydrochloride

    3-Iodothyronamine-[ethylamino-1,1,2,2-2H4] hydrochloride

    Starting at: €794.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Isotopic Incorporation: >98% 2H

    Purity: >98%

    Shipping: Overnight

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  11. Vitamin D2-[2H3]

    Vitamin D2-[2H3]

    Starting at: €986.00

    Stable isotope labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

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  12. 2-Methoxy-[13C,2H3]-estradiol

    2-Methoxy-[13C,2H3]-estradiol

    Starting at: €986.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Isotopic Incorporation: 99% 13C; 98% 2H

    Purity: >98%

    Shipping: Overnight

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  13. 4-Methoxy-[13C,2H3]-estradiol

    4-Methoxy-[13C,2H3]-estradiol

    Starting at: €986.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Isotopic Incorporation: 99% 13C; 98% 2H

    Purity: >98%

    Shipping: Overnight

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  14. 18-Hydroxycorticosterone

    18-Hydroxycorticosterone

    Starting at: €1,018.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  15. 3-Epi-25-Hydroxyvitamin-D3

    3-Epi-25-Hydroxyvitamin-D3

    Starting at: €1,151.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  16. 1,25-Dihydroxyvitamin-D2-[2H3]

    1,25-Dihydroxyvitamin-D2-[2H3]

    Starting at: €1,464.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Isotopic Incorporation: 99% 2H

    Purity: >95%

    Shipping: Overnight

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  17. 1,25-Dihydroxyvitamin-D3-[2H3]

    1,25-Dihydroxyvitamin-D3-[2H3]

    Starting at: €2,888.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Isotopic Incorporation: 97% 2H; >2.90D/molecule

    Purity: >96%

    Shipping: Overnight

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  18. 6β-Hydroxycortisol-[2H4]

    6β-Hydroxycortisol-[2H4]

    Starting at: €2,888.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Isotopic Incorporation: 3.77 2H/molecule

    Purity: >97%

    Shipping: Overnight

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  19. 25-Hydroxyvitamin-D2-[2H3]

    25-Hydroxyvitamin-D2-[2H3]

    Starting at: €2,389.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Isotopic Incorporation: 97% 2H; >2.90/molecule

    Purity: >98%

    Shipping: Overnight

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  20. 18-Hydroxycorticosterone-[2H4]

    18-Hydroxycorticosterone-[2H4]

    Starting at: €3,329.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Isotopic Incorporation: 98% 2H

    Purity: >98%

    Shipping: Overnight

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  21. 17α-Hydroxyprogesterone-[2,3,4-13C3]; methanol solution (1 mL)

    17α-Hydroxyprogesterone-[2,3,4-13C3]; methanol solution (1 mL)

    Starting at: €496.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    • Isotopic Incorporation: >98% 13C
    • Purity: >98%
    • Shipping: Overnight
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  22. 17β-Estradiol-[2,3,4-13C3]; acetonitrile solution (1 mL)

    17β-Estradiol-[2,3,4-13C3]; acetonitrile solution (1 mL)

    Starting at: €528.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Isotopic Incorporation: >99% 13C

    Purity: >98%

    Shipping: Overnight

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  23. Arachidonic acid

    Arachidonic acid

    Starting at: €59.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >95%

    Shipping: Overnight

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  24. Biotin-[2H2]; ethanol solution (1mL)

    Biotin-[2H2]; ethanol solution (1mL)

    Starting at: €59.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Isotopic Incorporation: >98% 2H

    Purity: >97%

    Shipping: Overnight

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  25. Cholesterol;  chloroform solution (1 mL)

    Cholesterol; chloroform solution (1 mL)

    Starting at: €59.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  26. Cortisol; methanol solution (1 mL)

    Cortisol; methanol solution (1 mL)

    Starting at: €66.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  27. Dehydroepiandrosterone; methanol solution (1mL)

    Dehydroepiandrosterone; methanol solution (1mL)

    Starting at: €119.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  28. Dehydroepiandrosterone sulfate sodium salt; methanol solution (1mL)

    Dehydroepiandrosterone sulfate sodium salt; methanol solution (1mL)

    Starting at: €59.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  29. 11-Deoxycortisol; methanol solution (1 mL)

    11-Deoxycortisol; methanol solution (1 mL)

    Starting at: €59.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  30. Estrone, 3-methyl ether

    Estrone, 3-methyl ether

    Starting at: €59.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples

    Purity: >98%

    Shipping: Overnight

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  31. 16α-Hydroxyestradiol (Estriol)

    16α-Hydroxyestradiol (Estriol)

    Starting at: €59.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >97%

    Shipping: Overnight

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  32. 17α-Hydroxyprogesterone; methanol solution (1 mL)

    17α-Hydroxyprogesterone; methanol solution (1 mL)

    Starting at: €59.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >95%

    Shipping: Overnight

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  33. 3,3',5-Triiodothyronine

    3,3',5-Triiodothyronine

    Starting at: €59.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: ≥95%

    Shipping: Overnight

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  34. Vitamin-D2

    Vitamin-D2

    Starting at: €59.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: ≥98%

    Shipping: Overnight

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  35. Vitamin-D3

    Vitamin-D3

    Starting at: €59.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: ≥98%

    Shipping: Overnight

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  36. Vitamin K1

    Vitamin K1

    Starting at: €59.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: ≥97% (sum of E and Z isomers)

    Shipping: Overnight

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  37. Barbituric Acid

    Barbituric Acid

    Starting at: €66.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: ≥98%

    Shipping: Overnight

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  38. Cortisone

    Cortisone

    Starting at: €66.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: ≥98%

    Shipping: Overnight

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  39. cis-4,7,10,13,16,19-Docosahexaenoic acid

    cis-4,7,10,13,16,19-Docosahexaenoic acid

    Starting at: €66.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  40. cis-5,8,11,14,17-Eicosapentaienoic acid

    cis-5,8,11,14,17-Eicosapentaienoic acid

    Starting at: €66.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  41. 17β-Estradiol

    17β-Estradiol

    Starting at: €66.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  42. Estrone

    Estrone

    Starting at: €66.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: <98%

    Shipping: Overnight

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  43. 2-Methoxyestrone

    2-Methoxyestrone

    Starting at: €179.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  44. 4-Methoxyestrone

    4-Methoxyestrone

    Starting at: €169.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >97%

    Shipping: Overnight

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  45. Probucol Structure

    Probucol

    Starting at: €66.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: 96%

    Shipping: Overnight

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  46. Progesterone

    Progesterone

    Starting at: €66.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  47. Pregnenolone

    Pregnenolone

    Starting at: €66.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  48. Pregnenolone sulfate sodium salt

    Pregnenolone sulfate sodium salt

    Starting at: €66.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  49. Pyridoxal hydrochloride

    Pyridoxal hydrochloride

    Starting at: €82.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >98%

    Shipping: Overnight

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  50. Pyridoxine hydrochloride

    Pyridoxine hydrochloride

    Starting at: €66.00

    Stable isotope (2H, 13C, 15N) labeled compounds are useful as internal standards for determining the concentration of the otherwise identical unlabeled compound that is present in biological, environmental and other types of samples.

    Purity: >96%

    Shipping: Overnight

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