N-Methyltaurine Sodium Salt
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Product Description
N-Methyltaurine Sodium Salt, also known as Sodium 2-(methylamino)ethanesulfonate, is an organic sulfonic acid salt. Its structure features a two-carbon ethylene backbone with a secondary (methylamino) group attached to one end and a sulfonate group at the other, balanced by a sodium cation. This polar, water-soluble molecule is used in surfactants, detergent formulations, and biochemical research as a zwitterionic buffer component or intermediate. It is also recognized as safe for use in cosmetics by the Cosmetic Ingredient Review (CIR) when formulated to be non-irritating.
Packaging
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Common Sizes: 1kg aluminum foil bags, 25kg plastic drums.
Synthesis Methods
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Common Synthesis Methods:
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Reacting ethylenediamine with sodium ethenesulfonate.
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Heating aqueous sodium 2-hydroxyethanesulfonate with amine starting materials (e.g., methylamine) in an autoclave under controlled conditions.
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Reacting N-methyltaurine with an alkali like sodium hydroxide.
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The reaction of sodium isethionate with methylamine under high temperature and pressure.
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Reacting sodium taurinate with formaldehyde, followed by hydrogenation.
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Uses
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Pharmaceuticals: Used as a pharmaceutical intermediate in the production of various fine chemical products.
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Cosmetics: Used in personal care products like shampoos, body washes, and soaps due to its amphiphilic properties.
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Food & Beverage: Used as a component in food additives.
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Agriculture: Used in agricultural formulations.
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Animal Feed: Used in animal feed formulations.
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Scientific Research: Used as an intermediate in synthesizing water-soluble polythiophene derivatives for conductive materials. It also serves in biological studies, such as producing Gemini surfactants, analyzing enzyme kinetics, and studying protein interactions.
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Material Science: Used as a monomer in the synthesis of specialized polymers, such as water-soluble polythiophene derivatives, which are used in electronics and other conductive materials.
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Industrial Uses: Used as a polymerization monomer, solvent, antifreeze, and in the production of surfactants and surface-active agents.
Basic Information
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Chemical Name: Sodium 2-(methylamino)ethanesulfonate
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Synonyms: N-Methyltaurine Sodium Salt, Sodium N-methyltaurinate
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Molecular Formula: C₃H₈NNaO₃S
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Molecular Weight: 161.16 g/mol
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CAS Number: 4316-74-9
Physical and Chemical Properties
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Appearance: Typically a colorless or pale yellow liquid in aqueous solution, or a white solid in anhydrous form.
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Solubility: Highly soluble in water (410 g/L at 20°C), slightly soluble in methanol and DMSO.
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Boiling Point: 493.73°C at 101,325 Pa.
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Density: 1.21 g/cm³.
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pKa: 8.66 at 20°C (effective as a buffer in neutral to alkaline pH range).
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Stability: Stable under normal conditions but should be stored in a cool, dry, ventilated area away from incompatible substances.
Safety and Handling
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Hazard Classification: Classified as a dangerous substance (GHS05 - Corrosive), with potential to cause severe skin burns and serious eye damage.
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Personal Protective Equipment (PPE): Wear appropriate PPE, including protective gloves, eye protection, and a respirator if there is a risk of inhalation.
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First Aid:
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Inhalation: Move to fresh air. If breathing is difficult, provide oxygen.
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Skin Contact: Rinse affected area with plenty of water. Remove contaminated clothing.
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Eye Contact: Rinse eyes with plenty of water for at least 15 minutes. Remove contact lenses if present.
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Ingestion: Rinse mouth. Do not induce vomiting. Seek medical attention.
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Storage: Store in a cool, dark place. Keep containers tightly closed. Protect from moisture and incompatible substances.
Regulatory Information
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Cosmetic Ingredient Review (CIR): The CIR Expert Panel concluded that Sodium Methyltaurate is safe in cosmetics when formulated to be non-irritating.
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Toxic Substance Control Act (TSCA): Listed on the TSCA Inventory.
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International Inventories: Listed on various international chemical inventories, including DSL (Canada) and TSCA (USA).