Chemical Name: 2,3-Pyridinedicarboxylic anhydride
CAS No.: 699-98-9
Molecular Fomula: C7H3NO3
Molecular weight:?149.1
Appearance:?Off-white or light brown crystalline powder
Chemical Name: 2,4-Dinitrobenzaldehyde
CAS No.: 528-75-6
Molecular Fomula: C7H4N2O5
Molecular weight:?196.12
Appearance:?Light brown to light red powder