... , General name:2B acid 2, Chemical name:2-Chloro-4-Aminotoluene-5-Sulphonic Acid CAS:88-51-9 2B acid 1, General ... :2B acid 2, Chemical name:2-Chloro-4-Aminotoluene-5-Sulphonic Acid3, Structural formula: 4, Molecular formula:C7H6ClNO3S, Molecular weight:221.55 ... Purity, (wt)%:≥98.0Moisture, (wt)%:≤1.0 Insoluble matter in alkali, (wt)%≤0.5Ash, %≤0.5 7, Uses:an important organic Pigment intermediate. 8 ...