Dear friend, Good day! As for Fast Red Base B & GL, our qualities are superior in our ... -4 - nitroaniline (Red Base B,Fast Red B Base,C.I. Azoic diazo component 5,Fast Red Base B,2-Amino-5-nitroanisol,4 ... 4-Methyl-2-Nitroaniline(Fast Red GL Base) CAS No.: 89-62-3 Appearance:Red-orange crystal Use: mainly ... used in the synthesis of pigment yellow 1#, pigment red 3#. If you want to acquaint with more ...