Sulfonic Para Base Ester

Name: Aniline-4-beta-ethyl sulfonyl sulfate-2-sulfonic acid
Another name: Sulfonic para base ester 
Structural formula:

 
Molecular formula: C₈H₁₁O₉S₃
Molecular weight: 361.37 
CAS NO.: 42986-22-1 
Appearance: Lilac powder of moist
Ester value: 65%Min
Purity: 92%Min
Use: The reactive dye centre body, replace the contrapuntal ester to be put into use.