Phenol, 4-nitro-2-[[(4-nitrophenyl)methylene]amino]-, also known as 4-nitro-2-(4-nitrobenzylideneamino)phenol, is an organic compound with the chemical formula C13H9N3O4. It is a derivative of phenol, featuring a nitro group at the 4-position and an imine group formed by the condensation of 4-nitrobenzaldehyde with aniline. Phenol, 4-nitro-2-[[(4-nitrophenyl)methylene]amino]- is characterized by its yellow crystalline appearance and is soluble in organic solvents such as ethanol and acetone. It is primarily used as an intermediate in the synthesis of various dyes and pharmaceuticals, including the antimalarial drug chloroquine. Due to its chemical structure, it exhibits properties such as reactivity towards nucleophiles and electrophilic aromatic substitution.
The CAS Registry Mumber 3331-11-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,3,3 and 1 respectively; the second part has 2 digits, 1 and 1 respectively. Calculate Digit Verification of CAS Registry Number 3331-11: (6*3)+(5*3)+(4*3)+(3*1)+(2*1)+(1*1)=51 51 % 10 = 1 So 3331-11-1 is a valid CAS Registry Number.