97%
powder
280-285 °C (dec.) (lit.)
OC(=O)c1nc[nH]c1C(O)=O
1S/C5H4N2O4/c8-4(9)2-3(5(10)11)7-1-6-2/h1H,(H,6,7)(H,8,9)(H,10,11)
ZEVWQFWTGHFIDH-UHFFFAOYSA-N
11 - Combustible Solids
WGK 3