C12-14-alkyldimethyl Amines (DMA1270) CAS 84649-84-3

C12-14-alkyldimethyl Amines (DMA1270) is a tertiary alkyl amine mixture based on linear C12 to C14 alkyl chains with dimethylamino end groups. It acts as a core intermediate for benzalkonium chloride, betaine surfactants and amine oxide production, resolving low quaternization efficiency and dark color issues in surfactant manufacturing. UETChem supplies high-purity DMA1270 with low free amine content and water-white color for stable downstream processing. Each shipment includes COA, TDS, SDS.

  • CAS No: 84649-84-3
  • Synonyms: DMA1270; N,N-Dimethyldodecylamine mixture; Dimethyl lauryl amine; C12-14 tert amine; N,N-Dimethylalkyl(C12-C14)amine
  • EINECS: 283-465-4
  • Molecular Formula: C14H31N to C16H35N (Mixture)
  • Molecular Weight: 213.4 – 241.5 g/mol
  • Appearance: Clear colorless to pale yellow liquid
  • Assay: 98.0% min
  • Color (APHA): 30 max
  • Packaging: 150 kg HDPE drum, ISO tank. Custom packaging available upon request.
  • Main Applications: Benzalkonium chloride synthesis, betaine surfactants, amine oxides, oilfield chemicals
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Introduction to DMA1270

C12-14-alkyldimethyl Amines are composed of linear C12 to C14 alkyl chains bonded to nucleophilic dimethylamino functional groups. The structure combines hydrophobic long-chain tails with reactive tertiary nitrogen sites. It appears as a clear colorless to pale yellow liquid at room temperature, with a characteristic amine odor. The compound is insoluble in water and fully miscible with alcohols, ethers and most non-polar organic solvents.

Industrial production adopts precision fractionation to achieve target purity and mild odor profiles. The material undergoes typical tertiary amine reactions including quaternization with alkyl halides, oxidation with peroxides and condensation with carboxylate reagents.

DMA1270 Chemical & Physical Properties

Property Value
Molecular Formula C14H31N to C16H35N (Mixture)
Molecular Weight 213.4 – 241.5 g/mol
Appearance Clear colorless to pale yellow liquid
Boiling Point 250 – 280 °C
Specific Gravity (20 °C) 0.82
Flash Point >110 °C closed cup
Assay 98.0% min
Color (APHA) 30 max

Applications of DMA1270

Quaternary ammonium biocides: Reacts with benzyl chloride to produce benzalkonium chloride (BKC), a cationic biocide widely used in hospital disinfection, water treatment algicide and industrial preservation systems.

Betaine amphoteric surfactants: Condenses with sodium chloroacetate to form C12-14 alkyl betaines, which serve as thickeners and foam boosters in shampoo and body wash formulations. High raw material purity supports mild skin and eye compatibility in personal care products.

Amine oxide cleaners: Oxidizes with hydrogen peroxide to form C12-14 amine oxides, high-efficiency soil lifting agents and foam stabilizers for hard surface cleaners and laundry detergents, with improved performance in hard water environments.

Oilfield chemicals: Acts as a precursor for downhole corrosion inhibitor formulations, forming protective adsorption films on steel pipe surfaces to resist acidic brine and sulfide corrosion.

Storage & Safety Precautions for DMA1270

  • Store in tightly sealed containers with nitrogen blanketing. Avoid exposure to air, light and trace copper impurities to prevent oxidative darkening that impairs downstream surfactant color quality.
  • Use stainless steel exclusively for transfer lines, pumps and valves. Brass or copper fittings catalyze degradation and form colored complexes that contaminate final products.
  • Handle as a corrosive liquid and skin sensitizer. Wear chemical splash goggles, nitrile gloves and long-sleeve protective clothing during bulk transfer and dosing operations.

DMA1270 FAQ

Q: How does C12-14-alkyldimethyl Amines (DMA1270) improve disinfectant synthesis?

A: It forms benzalkonium chloride with high conversion efficiency. The C12-C14 chain cut delivers strong biocidal activity and low residual odor.

Q: Why is DMA1270 preferred for betaine surfactant manufacturing?

A: It produces betaines with reliable foam boosting and thickening. High purity minimizes irritation risk in personal care products.

Q: What causes C12-14-alkyldimethyl Amines (DMA1270) to darken in storage?

A: Air, light or trace copper triggers oxidative discoloration. Use nitrogen-blanketed stainless steel containers for storage.

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