Is Dodecyldipropylenetriamine the same as Laurylamine Dipropylenediamine?

Yes. Both names are used for CAS 2372-82-9, also described as N,N-bis(3-aminopropyl)dodecylamine. It is a polyamine with three amine functions, so it is not the same as laurylamine or a simple C12 monoamine.

Why should total amine value be compared for this material?

Total amine value measures acid-neutralizing capacity under the stated test conditions. Compare grades using the same method and unit basis, together with water content and assay. For epoxy formulations, it does not replace amine hydrogen equivalent weight (AHEW), which is used with epoxy equivalent weight to calculate the mixing ratio.

Does an acid-neutralized form of Dodecyldipropylenetriamine behave like the free amine?

Not automatically. Acid type and neutralisation level change the supplied composition and can alter solubility, dispersion and formulation behaviour. The selected acid, molar ratio, solvent and use conditions must be evaluated together for the finished inhibitor system.

Dodecyldipropylenetriamine (Laurylamine Dipropylenediamine) CAS 2372-82-9

Dodecyldipropylenetriamine (CAS 2372-82-9, EC 219-145-8), also known as Laurylamine Dipropylenediamine, is supplied for corrosion-inhibitor, industrial microbial-control and epoxy-curing formulations. COA, TDS and SDS are available for the supplied grade. Contact us with your application or target specification, quantity and destination for a quotation.

CAS: 2372-82-9
Synonyms: Dodecyldipropylenetriamine; N,N-bis(3-aminopropyl)dodecylamine; N-(3-aminopropyl)-N-dodecylpropane-1,3-diamine; Laurylamine Dipropylenediamine
Einecs: 219-145-8
Molecular Formula: C18H41N3
Grade: Industrial dodecyldipropylenetriamine; specified by assay, amine value, water content and supply form
Package: Dodecyldipropylenetriamine packaging is specified in our quotation according to the selected grade, quantity and destination.

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Product Description

1 Product Overview

2 Product Information / Specifications

3 Physical & Chemical Properties

4 Applications

5 Packaging

6 Storage Conditions

Product Overview

Dodecyldipropylenetriamine, also known as Laurylamine Dipropylenediamine or N,N-bis(3-aminopropyl)dodecylamine, is a C12 aliphatic polyamine with two primary amino groups and one central tertiary amine. This structure distinguishes it from laurylamine and linear dipropylenetriamine.

For dodecyldipropylenetriamine, assay describes composition, while total amine value measures acid-neutralizing capacity. Water content and supply form also matter when comparing grades for a formulation.

Product Information / Specifications

Product Name	Dodecyldipropylenetriamine (Laurylamine Dipropylenediamine)
CAS No.	2372-82-9
Synonyms	Dodecyldipropylenetriamine; N-(3-aminopropyl)-N-dodecylpropane-1,3-diamine; Laurylamine Dipropylenediamine
EINECS No.	219-145-8
Molecular Formula	C18H41N3
Molecular Weight	299.55 g/mol
Product Identity	Long-chain aliphatic polyamine
Grade	Industrial dodecyldipropylenetriamine; specified by assay, amine value, water content and supply form

Physical & Chemical Properties

Appearance	Typically a colourless to yellow liquid at room temperature; colour and low-temperature handling depend on the grade.
Total Amine Number	Total amine number is determined by acid-base titration. Results expressed in mg KOH/g and mg HCl/g use different unit bases and require conversion before comparison.
Water	Water content, expressed as mass %, helps distinguish the composition of dodecyldipropylenetriamine grades. The test method accompanies the result in the product specification.
Color	For dodecyldipropylenetriamine, colour is specified on a defined scale, such as Gardner. Values are comparable only when the same scale and test conditions are used.
Supply Form	Undiluted dodecyldipropylenetriamine, diluted solutions and acid-neutralized grades differ in composition; these differences affect dosage and price comparisons.
Composition Basis	For dodecyldipropylenetriamine, assay results depend on the analytical method: chromatographic area % is not automatically equivalent to mass %. Total amine value alone does not identify the individual amines present.
Acid Salt Status	Acid-neutralized salts differ from the free amine in composition and formulation behaviour.
Technical Documents	COA, TDS and SDS available from us for the supplied dodecyldipropylenetriamine grade.

Gas chromatography (GC) can assess composition, while acid-base titration measures acid-neutralizing capacity. These results are not interchangeable. Nuclear magnetic resonance (NMR) can confirm molecular identity.

Applications

Corrosion-inhibitor and dispersant formulations: compare this fatty triamine with octadecylamine (stearylamine) by amine functionality, working pH and handling temperature.
Epoxy-curing systems: compare with diethylenetriamine (DETA) using amine hydrogen equivalent weight, resin compatibility and curing performance.
Industrial microbial-control formulations, including oilfield applications: select the grade and dosage for the intended formulation and service conditions.
Disinfectant-cleaner development: phenoxyethanol has been used with this triamine in published formulations. Compatibility, stability and finished-product efficacy require formulation testing.
Intermediate for specialty chemical synthesis.

These related materials have different structures and functions; they are not drop-in substitutes.

Packaging

Dodecyldipropylenetriamine packaging is specified in our quotation according to the selected grade, quantity and destination.

Storage Conditions

Follow the supplied SDS and grade-specific storage conditions; keep containers closed and protect the material from moisture and contamination.

FAQ - Technical & Supply Chain

Q:
Is Dodecyldipropylenetriamine the same as Laurylamine Dipropylenediamine?

A: Yes. Both names are used for CAS 2372-82-9, also described as N,N-bis(3-aminopropyl)dodecylamine. It is a polyamine with three amine functions, so it is not the same as laurylamine or a simple C12 monoamine.
Q:
Why should total amine value be compared for this material?

A: Total amine value measures acid-neutralizing capacity under the stated test conditions. Compare grades using the same method and unit basis, together with water content and assay. For epoxy formulations, it does not replace amine hydrogen equivalent weight (AHEW), which is used with epoxy equivalent weight to calculate the mixing ratio.
Q:
Does an acid-neutralized form of Dodecyldipropylenetriamine behave like the free amine?

A: Not automatically. Acid type and neutralisation level change the supplied composition and can alter solubility, dispersion and formulation behaviour. The selected acid, molar ratio, solvent and use conditions must be evaluated together for the finished inhibitor system.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

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