Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6811
Is Reference of PNP-de#Sense
Paranitrophenol-de#Sense
PNP-en#Sense
Paranitrophenol-en#Sense
P-Nitrophenol-en#Sense
P-Nitrophenol-de#Sense