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2-Acrylamide-2-Methylpropanesulfonic Acid CAS 60719-84-8

Molecular Formula: C10H9N3O

Formula Weight: 187.2

ZSpharmac: 2-Acrylamide-2-Methylpropanesulfonic Acid  Supplement

Product Name: 2-Acrylamide-2-Methylpropanesulfonic Acid
CAS No: 60719-84-8  
Purity: 99%

Basic Info

Product Name:2-Acrylamide-2-Methylpropanesulfonic Acid
Other Names:Amrinon
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Dye Intermediates
Appearance:Crystalline Solid
EINECS No.:262-390-0
Storage:Cool Dry Place
Provide:2-Acrylamide-2-Methylpropanesulfonic Acid MSDS;
SigmaAldrich COA

What is 2-Acrylamide-2-Methylpropanesulfonic Acid ?

2-Acrylamido-2-methylpropanesulfonic acid (AMPS) is a water-soluble sulfonic acid group with strong anion, which makes it salt-resistant, high-temperature resistant, dyeing affinity, conductive, Ion exchangeability and good resistance to divalent cations; amide group makes it have good hydrolysis stability, acid and alkali resistance and thermal stability; and active double bond makes it have addition polymerization properties , and can produce copolymers with a variety of hydrocarbon monomers. AMPS has good polymerization properties and can be homopolymerized by itself or copolymerized with other monomers to synthesize millions or even tens of millions of high molecular weight polymers. AMPS homopolymers and AMPS copolymers with other monomers are widely used in textiles, printing and dyeing, plastics, coatings, papermaking, wastewater treatment, daily chemicals, leather and oilfield chemistry. AMPS is used as a modified monomer for acrylic fibers, which can significantly improve the spinnability, dyeability, antistatic properties, abrasion resistance, whiteness and transparency of fibers; AMPS is used in the preparation of superabsorbent resins, which can improve the resin’s ability to absorb salt water. ability.

2-Acrylamide-2-Methylpropanesulfonic Acid Properties:

Melting point 195 °C (dec.) (lit.)
density 1.45
vapor pressure <0.0000004 hPa (25 °C)
refractive index 1.6370 (estimate)
Fp 160 °C
storage temp. Store below +30°C.
solubility >500g/l soluble
form solution
color White
Water Solubility 1500 g/L (20 ºC)


2-Acrylamide-2-Methylpropanesulfonic Acid Uses

  1. 2-Acrylamido-2-methyl-1-propanesulfonic acid (AMPS) has a polymerizable vinyl group as well as a hydrophilic sulfonic acid group in the particle, which can be incorporated with water-soluble monomers such as acrylonitrile and also acrylamide, benzene Copolymerization of water-insoluble monomers such as ethylene and plastic chloride. The introduction of hydrophilic sulfonic acid teams right into polymers makes fibers, movies, etc hygroscopic, water-permeable, and also conductive. Can be used in paper sector as well as wastewater therapy.
  2. 2-Acrylamido-2-methyl-1-propane sulfonic acid (AMPS) is a homopolymer and a comonomer, widely used in oil field, textile, paper making, water treatment, synthetic fiber, printing and dyeing, plastics, water-absorbing coatings, biological Medicine etc.

Preparation of 2-Acrylamide-2-Methylpropanesulfonic Acid

A preparation method of 2-acrylamido-2-methylpropanesulfonic acid is completed by the following steps:
1. First add 50 ml of acrylonitrile to the reaction kettle as the pre-reaction solution, turn on the stirrer, stir at a rotational speed of 120 to 160 r/min, and use the freezing solution to reduce the temperature in the reaction kettle to 2 to 6 °C;
2. After the temperature in the reaction kettle drops to 2~6℃, add acrylonitrile and fuming sulfuric acid into the reaction kettle at a constant speed respectively, the reaction residence time is 1~1.5h, when the reaction solution reaches the overflow of the 1# reaction kettle When the flow port, the overflow liquid flows into the reactor;
3. When the overflow liquid flows into the reaction kettle, the vaporized isobutene is passed into the reaction kettle at a constant speed, the reaction residence time is 2.5~3h, and the reaction temperature is 37~42℃, and then it is continuously overflowed into the sedimentation crystallization kettle for constant temperature cooling, After drying under reduced pressure by centrifugation, 900.5g of 2-acrylamido-2-methylpropanesulfonic acid crude product was obtained; the product purity was 97.7% (detected by liquid chromatography);
4. The crude product of 2-acrylamido-2-methylpropanesulfonic acid and 2700g of acetic acid were added to the recrystallization kettle, and the temperature of the recrystallization kettle was heated to 80°C from room temperature in 40min, and then cooled to 20°C at a uniform speed , incubated at 20°C for 1 h, and centrifuged to dry to obtain 767.2 g of 2-acrylamido-2-methylpropanesulfonic acid.
The water content of the acrylonitrile described in the second step is 0.02%; the free state SO3 content in the oleum described in the second step is 5%; the inflow rate of the acrylonitrile described in the second step is 169.26g/h; in the second step The inflow rate of the oleum is 24.5g/h; the inflow rate of the vaporized isobutene in step 3 is 24.5g/h.
The yield of this method is 85.2% (calculated as crude 2-acrylamido-2-methylpropanesulfonic acid), the product purity is 99.9% (detected by liquid chromatography), and the melting point is 184.1°C.

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Additive , Chemical Auxiliary & Catalyst , Organic Chemicals
  • Products/Service: Organic Intermediate,Inorganic Chemistry, APIs, Dyestuffs And Pigments, Fragrance And Spices, Food Additives
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

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