https://www.lookchem.com/casno106288-48-6.html
Cas 106288-48-6,Urea, (hexahydro-5-methoxy-2,4,6-trioxo-5-pyrimidinyl)- | lookchem
https://www.porphyrin.net/shop/fm-in-da002vaw-135-triazine-135-2h-4h-6h-tripropanoic-acid-246-trioxo-82541
1,3,5-Triazine-1,3,5(2H,4H,6H)-tripropanoic acid, 2,4,6-trioxo- | Porphynet