... -9 2B acid 1, General name:2B acid 2, Chemical name:2-Chloro-4-Aminotoluene-5-Sulphonic Acid3, Structural formula: 4, Molecular formula:C7H6ClNO3S ... . 6, Specification:Appearance:white or light red powder Purity, (wt)%:≥98.0Moisture, (wt)%:≤1.0 Insoluble matter in alkali, (wt)%≤0 ...