2-Acrylamido-2-methyl-1-propanesulfonic acid sodium salt solution(AMPS-Na) - 50 wt. % in H2O，stabilized with 65-100ppm MEHQ , CAS No.5165-97-9

CAS: 5165-97-9 Cat. No.: A303866 Molecular Weight: 229.23 EC Number: 225-948-4

GRADE & PURITY 50 wt. % in H2O，stabilized with 65-100ppm MEHQ

Synonyms

Sodium acryloyldimethyltaurate | 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid sodium | Sodium 2-acrylamido-2-methyl-1-propanesulfonate

Storage

Room temperature

Shipped In

Normal

Overview

2-Acrylamido-2-methyl-1-propanesulfonic acid sodium salt (AMPSNa) is a hydrophilic compound that can be used as a dopant and a protonating agent for conducting polymers. It is used in a variety of electronic applications.
AMPSNa can be used in the formation of polyelectrolyte copolymer gels for potential application in bioengineering, biomedicine and water purification. It can also be used in the fabrication of Schottky diodes, humidity sensors, and lithium ion batteries.

Specifications

Synonyms

Sodium acryloyldimethyltaurate | 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid sodium | Sodium 2-acrylamido-2-methyl-1-propanesulfonate

Specifications & Purity

50 wt. % in H2O，stabilized with 65-100ppm MEHQ

Storage

Room temperature

Shipped In

Normal

Names and Identifiers

• Pubchem Sid: 504769512
• Pubchem Sid Url: https://pubchem.ncbi.nlm.nih.gov/substance/504769512
• Canonical Smiles: CC(C)(CS(=O)(=O)[O-])NC(=O)C=C.[Na+]
• IUPAC Name: sodium;2-methyl-2-(prop-2-enoylamino)propane-1-sulfonate
• InChIKey: FWFUWXVFYKCSQA-UHFFFAOYSA-M
• INCHI: 1S/C7H13NO4S.Na/c1-4-6(9)8-7(2,3)5-13(10,11)12;/h4H,1,5H2,2-3H3,(H,8,9)(H,10,11,12);/q;+1/p-1
• Isomeric SMILES: CC(C)(CS(=O)(=O)[O-])NC(=O)C=C.[Na+]
• Molecular Weight: 229.23
• Reaxy-Rn: 8091952
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=8091952&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Organic acids and derivatives
    • Class Organic sulfonic acids and derivatives
      • Subclass Organosulfonic acids and derivatives

• Kingdom: Organic compounds
• Superclass: Organic acids and derivatives
• Class: Organic sulfonic acids and derivatives
• Subclass: Organosulfonic acids and derivatives
• Intermediate Tree Nodes: Not available
• Direct Parent: Organosulfonic acids
• Alternative Parents: Sulfonyls Alkanesulfonic acids Acrylic acids and derivatives Secondary carboxylic acid amides Organopnictogen compounds Organonitrogen compounds Organic sodium salts Organic oxides Hydrocarbon derivatives Carbonyl compounds
• Molecular Framework: Aliphatic acyclic compounds
• Substituents: Acrylic acid or derivatives - Organosulfonic acid - Sulfonyl - Alkanesulfonic acid - Carboxamide group - Secondary carboxylic acid amide - Carboxylic acid derivative - Organic alkali metal salt - Carbonyl group - Organic salt - Organic sodium salt - Hydrocarbon derivative - Organic oxide - Organopnictogen compound - Organosulfur compound - Organooxygen compound - Organonitrogen compound - Organic oxygen compound - Organic nitrogen compound - Aliphatic acyclic compound
• Description: This compound belongs to the class of organic compounds known as organosulfonic acids. These are compounds containing the sulfonic acid group, which has the general structure RS(=O)2OH (R is not a hydrogen atom).
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Mechanisms of Action

Chemical and Physical Properties

• Refractive Index: n20/D 1.4220 (lit.)
• Molecular Weight: 229.230 g/mol
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 4
• Exact Mass: 229.038 Da
• Monoisotopic Mass: 229.038 Da
• Topological Polar Surface Area: 94.700 Ų
• Heavy Atom Count: 14
• Formal Charge: 0
• Complexity: 304.000
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 2

XLogP3

References

1. Na Su.  (2023)  Synthesis of Poly (2-Acrylamido-2-methylpropanesulfnoinc Salt) Modified Carbon Spheres.  Polymers,  15  (17): (3510).  [PMID:37688137] [10.3390/polym15173510]

2. Nan He, Haonan Wang, Fan Li, Bo Jiang, Dawei Tang, Lin Li.  (2023)  Ion engines in hydrogels boosting hydrovoltaic electricity generation.  Energy & Environmental Science,  16  (6): (2494-2504).  [PMID:] [10.1039/D2EE03621E]

3. Hongkun Wang, Mingyu Du, Hao Jiang, Ruixuan Zhou, Yan Wang, Kunyan Sui, Wenxin Fan.  (2024)  Gradient p-Polyanion/n-Polycation Heterojunction Endows Ionic Diodes with Vastly Boosted Output Voltage, Power Density and Sensitivity.  ADVANCED FUNCTIONAL MATERIALS,      [PMID:] [10.1002/adfm.202407639]

4. Lu Chen, Jiale Zhou, Kunquan Li, Xuting Wu, Zhuohan Chen, Shengye Chen, Xuanjun Li, Huali Xie, Xiaojing Su, Peina Lin, Wenjian Wu.  (2024)  Robust and stable organic sulfonate sodium salt-coated superhydrophilic mesh for ultra-fast gravity-drive oil-water separation.  Surfaces and Interfaces,      [PMID:] [10.1016/j.surfin.2024.104331]

5. Lin Li, Yongfang Yang, Nan He, Xinyi Xu, Bingsen Wang, Jie Miao, Shengli Xu, Haonan Wang, Dawei Tang.  (2025)  Dual-interfacial gating unlocks bidirectional ionic flux for high-efficiency hydrovoltaic energy harvesting.  Energy & Environmental Science,      [PMID:] [10.1039/D5EE01678A]

6. Yajie Li, Yushu Liu, Fangzheng Zuo, Zhuoyou Gao, Jiali Zhang, Xin Wen, Hongzan Song.  (2025)  Anisotropic nanocomposite double network anti-freezing hydrogels with superior conductivity, high stretchability, and excellent resilience for wearable sensors.  COMPOSITES COMMUNICATIONS,      [PMID:] [10.1016/j.coco.2025.102566]

7. Lin Liu, Jieru Li, Shuyang Wang, Yuchen Xiang, Tongqing Lu, Yang Gao.  (2025)  Tough and anti-swelling naturally derived adhesives by long-chain toughening and electrostatic attraction.  POLYMER,      [PMID:] [10.1016/j.polymer.2025.128870]

8. Dan Rong, Shujun Zou, Yan Wu, Sijing He, Qinfeng Rong.  (2026)  A Polyanionic Gradient Hydrogel Electrolyte Enabling Anode/Cathode Coregulation for Robust Zn–Iodine Batteries.  ACS Applied Polymer Materials,      [PMID:] [10.1021/acsapm.5c04658]