4-Nitrophenol-2,3,5,6-d4 is a deuterium-labeled isotope of 4-nitrophenol wherein C-2, C-3, C-5, and C-6 protons are replaced by deuterium. Molecular Formula: C6D4HNO3 Molecular Weight: 143.13 Linear Structural Formula: O2NC6D4OH MDL Number: MFCD00143352 Purity: >=98.0% (HPLC) …