An NMR Spectral Study of the Structure of 5,5,6-trihydroxy-6-methyldihydropyrimidine-2,4-(1H,3H)-dione in DMSO-d6

The structure of 5,5,6-trihydroxy-6-methyldihydropyrimidine-2,4(1H,3H)-dione (2) was proven using C-13, H-1, and N-15 NMR spectroscopy. A new form (2a) was detected and shown to have a structure similar to dione 2.

Automated summary

The structure of 5,5,6-trihydroxy-6-methyldihydropyrimidine-2,4(1H,3H)-dione (2) was confirmed using C-13, H-1, and N-15 NMR spectroscopy. A new form (2a) was discovered, which has a similar structure to dione 2.