Sub Group: Heterocyclic Compounds Catalog Number: C12507 Enrichment: 98%:13C6 Formula: C413C6H4D4N2O4 Molecular Weight: 230.16 Synonyms: 3-Pyridinecarboxylic Acid-13C6,d4 2,5-Dioxo-1-pyrrolidinyl EsterN-(3-Pyridinyloyloxy-13C6,d4)succinimideN-(Nicotinoylo