Vinati Organics Ltd is the leading producer and supplier of 2-acrylamido-2-methylpropane sulphonic acid (CAS No. 15214-89-8) in India.


ATBS/AMPS is supplied in a granule or powder form. Depending on the polymerization molecular weight sought and the performance characteristics desired, ATBS/AMPS is offered in 3 grades:  2401, 2404 and 2406.


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An overview of AMPS Monomer:

Acrylamide tertiary-butyl sulfonic acid is a very unique versatile vinyl compound that has a sulphonic group. Its uses are widely found in the production of polymers, textiles, flocculants, dispersants, scale control agents and well-additives. The CAS number of this compound is 12514-89-8 and the IUPAC name is 2-acrylamido-2-methyl  propane sulfonic acid. ATBS monomer is highly polymerisable and can be just as easily depolymerised with the help of acrylonitrile, acrylic acid, acrylic esters, acrylamide etc using basic methods. The quality that makes this compound unique is its strong hygroscopicity. It collects the moisture from the surroundings and collects itself together when it comes in contact with water.


AMPS monomer is a highly reactive, hydrophilic, sulphonic acid acrylic monomer used to alter the chemical properties of a large variety of anionic polymers. The molecular formula of this compound is C7H13NO4S. The aqueous solution of this compound is acidic in nature and soluble in water but insoluble in acetone. Acrylamide tertiary-butyl sulfonic acid is prepared by the reaction of acrylonitrile and isobutylene in the presence of sulfuric acid and water.


The ATBS monomer along with sodium salt allows the polymers to manufacture high-quality polymers for application in a wide range of consumer and industrial products. The AMPS monomer at Vinati Organics Ltd is organic, high in productivity and performance and available in both granules and liquid form.


Chemical properties of 2-acrylamido-2-methyl propane sulfonic acid are:

Molecular formula: C7H13NO4S
Purity: >= 99.0%
Acid number:  265-275 mgKOH/g
Iron <=10 mg/kg
Water <=0.3%
CAS Number: 15214-89-8

Synonyms:  2-Acrylamido-2-Methylpropane Sulfonic Acid, 2-Acrylamido-2-Methylpropanesulfonic Acid, 2-Acrylamido-2-Methyl-1-Propane Sulfonic Acid and 2-Acryloylamino-2-Methylpropane-1-Sulfonic Acid, Acrylamide tertiary-butyl sulfonic acid


Uses and Applications:

  • AMPS monomer has a wide variety of uses including textiles, flocculants, dispersants, scale control agents as well as well-additives.
  • This compound also has uses in water treatment agents (majorly as a scale preventing agent), paper and pulp industry, paint and coatings, good additives, acrylic fibre dyeing aids.
  • It has an excellent synthesis, surface activity, absorptivity, biological activity, hydraulic as well as thermal stability.
  • The use of AMPS monomers is diversified in areas including oil fields, construction chemicals, hydrogens for chemicals, adhesives and rheology modifiers, emulsion coatings and personal care products.
  • It is suitable for use in co-polymerization and in addition reactions. It is popularly used in water treatment, latex adhesives and acrylic fibres.


Additional use of AMPS monomer includes:

  • Oil Field Applications:

The ATBS monomer is used in the oil field application in its granule and liquified form because of its impeccable thermal and hydraulic stability. Hostile environments like these require high-performing products. The compound has the property of increasing its viscosity and divalent cation stability making it an ideal solution for many oil field applications.

  • Latex and Adhesive Applications:

Acrylamide tertiary-butyl sulfonic acid by Vinati Organics Ltd is known to achieve outstanding latex stability in high-performance latex coatings. It increases the adhesive durability of pressure-sensitive adhesive formulations and increases the thermal and mechanical properties of adhesives.

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