There is no labeled version of Desmopressin in our catalog. Our Stable Isotopes team would need to be contacted in order to submit this as a custom request.
We kindly ask you to navigate to the link https://www.sigmaaldrich.com/techservice, click on "Product Technical Inquires" under the Products Section with all the required information so that a member of our team can reach out to you to assist further. Thank you.