It serves as an intermediate in the synthesis of various dyes and pigments, particularly used in the textile and printing industries. 4B Acid is also utilized as an intermediate in the synthesis of certain types of pharmaceuticals and agrochemicals.
| PRODUCT | PARA TOLUDINE META SULPHONIC ACID OR 4 – B ACID (Technical |
| CAS No | 88-44-8 |
| PHYSICAL APPERANCE | Grey Powder |
| MOLECULAR WEIGHT | 187.00 gm/mole |
| MOLECULAR FORMULA | C 7 H9 NSO3 |
| STRUCTURAL FORMULA |  |
| PURITY BY N V | 98.0 % (Min) |
| INSOLUBLE IN DIL. Na2 CO3 | 0.5 % (Max.) |
| ISOMER | 0.5 % (Max.) |
| SOLUBILITY | CLEAR SOLUTION IN 2% NaOH |
| PACKING | 25/50 Kg. NET IN H.D.P.E. BAG WITH LINERS |