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We show the simultaneous generation of hyperpolarized 13C‐labeled acetate and 15N‐labeled imidazole following spin‐relay of hyperpolarization and hydrolysis of the acetyl moiety on 1–13C‐15N2‐acetylimidazole. Using SABRE‐SHEATH (Signal Amplification by Reversible Exchange in SHield Enables Alignment Transfer to Heteronuclei), transfer of spin order occurs from parahydrogen to acetylimidazole 15N atoms...