Curtis, N. J. published the artcileDetermination of derivatives of diphenylamine in Australian gun propellants by high performance liquid chromatography, Application of Bis(4-nitrophenyl)amine, the publication is Propellants, Explosives, Pyrotechnics (1987), 12(5), 158-63, database is CAplus.
HPLC was developed for the determination of diphenylamine and its N-nitroso- and C-nitro derivatives in single-base gun propellants. Only 2- and 4-nitrodiphenylamine, 2,2′-, 2,4′- and 4,4′-dinitrodiphenylamine, 2,2′,4- and 2,4,4′-trinitrodiphenylamine, 2,2′,4,4′-tetranitrodiphenylamine, N-nitrosodiphenylamine, and 4-nitro-N-nitrosodiphenylamine were found in major amounts Minor derivatives noted were 2,4′-dinitrodiphenylamine, 2-nitro-N-nitrosodiphenylamine, and 2,4′- and 4,4′-dinitro-N-nitrosodiphenylamine. Other derivatives were not found. This HPLC method can be used to quantify all of the major derivatives in a single chromatogram and can be used even in the presence of the propellant additives dinitrotoluene, bis(ethylhexyl) phthalate, and di-Bu phthalate.
Propellants, Explosives, Pyrotechnics published new progress about 1821-27-8. 1821-27-8 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is Bis(4-nitrophenyl)amine, and the molecular formula is C12H9N3O4, Application of Bis(4-nitrophenyl)amine.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia