Hyperpolarized Carbon C 13/Nitrogen N 15-labeled Urea

**Semantic type:** Pharmacologic Substance

**Definition:** A radioconjugate composed of hyperpolarized urea radiolabeled with carbon C 13 and nitrogen N 15, that can potentially be used as a tracer for the accumulation of urea using magnetic resonance imaging (MRI).

**Synonyms:** - Hyperpolarized 13C,15N2-urea