Volatile matter (at 100 °C.), not more than 2.0 percent.
Matter insoluble in acetone, not more than 1.0 percent.
Anthranilic acid, not more than 0.2 percent.
N,N-([BETA],[BETA]'-Dihydroxy-diethyl) aniline, not more than 0.2 percent.
Subsidiary colors, not more than 3.0 percent.
Lead (as Pb), not more than 20 parts per million.
Arsenic (as As), not more than 3 parts per million.
Total color, not less than 95.0 percent.
21 C.F.R. §74.1339