Patent ID: 11970439
Assignee: KING FAISAL UNIVERSITY
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  A | IPC A  C

Claim 2:
3. A method of making the 8-(4-chlorobenzylideneamino)naphthalene-1,3-disulfonic acid compound of claim 1, the method comprising:
mixing 8-aminonaphthalene-1,3-disulfonic acid, 4-chlorobenzaldehyde, and triethylamine (TEA) in ethanol to obtain a solution;
irradiating the solution followed by cooling to room temperature to obtain a formed precipitate;
purifying the formed precipitate by filtering and recrystallization using ethanol; and
obtaining the 8-(4-chlorobenzylideneamino)naphthalene-1,3-disulfonic acid compound.