CAS: 2372-82-9
Molecular Formula: C18H41N3
Molecular Weight: 299.54
EINECS: 219-145-8
Synonyms: N,N-Bis(3-aminopropyl)dodecane-1-amine; N-Dodecyl-N-(3-aminopropyl)-1,3-propanediamine; bis(3-aminopropyl)-lauryl-amine; N-(3-azanylpropyl)-N-dodecyl-propane-1,3-diamine; N1-(3-aminopropyl)-N1-dodecylpropane-1,3-diamine; N-(3-aminopropyl)-N-dodecylpropane-1,3-diamine; LAURYLAMINE DIPROPYLENEDIAMINE
N – (3-aminopropyl) – N-dodecylpropane-1,3-diamine is a colorless and transparent liquid, which is an important intermediate for preparing excellent softeners. It can also be used as a mineral flotation agent, antibacterial agent, anti-static agent, and coal storage and transportation treatment agent, among other additives.
| Item | Specification |
| Boiling point | 182-184 °C(Press: 1 Torr) |
| Density | 0.880 |
| Vapor pressure | 0Pa at 25℃ |
| pKa | 10.46±0.10(Predicted) |
| Purity | 99% |
| SOLUBLE | 190g/L at 20℃ |
– Water treatment: Circulating water sterilization and algae removal, papermaking anti-corrosion;
– Metal processing: Cutting fluid, industrial heavy oil cleaning agent, rust removal conversion agent, gas-phase corrosion inhibitor raw material;
– Disinfection / Cosmetics: Hard surface disinfectants, allergen removal care ingredients;
– Wood： Wood mold and corrosion prevention；
– Textiles： Dye dispersant， fiber lubrication and anti-static；
– Oil fields： Asphalt polymerization inhibitor， crude oil demulsification aid.
1. N-(3-aminopropyl)-N-dodecylpropane-1,3-diamine: Broad-spectrum and highly effective bactericidal + powerful dust mite removal. One formula can be used for multiple purposes.
It has excellent killing effects on Gram-positive / negative bacteria, fungi, algae, and mites; it also has dust mite-killing properties, which is a core highlight differentiating it from ordinary quaternary ammonium salt disinfectants. It is suitable for disinfection and daily chemical dust mite removal formulations.
2. Low foam characteristic, friendly formula
Compared to traditional quaternary ammonium salt disinfectants, N-(3-aminopropyl)-N-dodecylpropane-1,3-diamine has lower foam. It is suitable for spray cleaning, circulating water, and high-pressure cleaning systems, and does not require additional large amounts of defoaming agents, simplifying the formula.
3. Excellent metal corrosion inhibition and rust transformation ability
The N-(3-aminopropyl)-N-dodecylpropane-1,3-diamine molecule with multiple amines has chelating ability and can chelate rust, forming a protective film on the metal surface; it is used in cutting fluids, industrial cleaning agents, and rust inhibitors, eliminating rust + corrosion inhibition + oil removal in one step, inhibiting flash rust during processing.
4. Strong compatibility in combination
It can be compounded with cationic, non-ionic, and some anionic surfactants; it is compatible with aqueous systems, has good water solubility, and can also dissolve in polar organic solvents. The formula adjustment is flexible.
5. Multiple amino active sites, can be used as a synthetic intermediate
Multiple primary amines and secondary amines active groups can be used as the core intermediate for synthesizing cationic surfactants, emulsifiers, dye dispersants, and textile auxiliaries, with a rich derivative product range.
6. Strong surface activity, also has emulsifying, dispersing, and anti-static properties
Long hydrophobic alkyl chain + hydrophilic amino structure can be used as an emulsifier, pigment / asphalt dispersion agent, and fiber anti-static agent; in oilfield formulations, it can inhibit asphalt deposition and assist in crude oil demulsification.
Usually packed in 25kg/drum,and also can be do customized package.
Q: Why does it change color in terms of storage stability?
A: It remains stable under sealed and cool conditions; when exposed to air for a long time and in high temperatures, it oxidizes and the color gradually deepens; it also absorbs CO₂ and water vapor from the air.
✅ Expiration date: Original packaging sealed for 12 months; recommended storage temperature 10–30℃, nitrogen protection can better maintain color.
Q: What are the differences compared to ordinary quaternary ammonium salt disinfectants?
A: Ordinary quaternary ammonium salts mainly function as disinfectants, have high foam, and have almost no rust prevention ability;
Y12D advantages: Low foam, also has metal corrosion prevention + rust conversion + mite killing functions, more friendly in spray cleaning and circulating water systems; does not contain halogens or formaldehyde/alders.
Q: Storage conditions?
A: Sealed, cool and ventilated warehouse; away from oxidants, strong acids, and aldehydes; HDPE inner liner iron drum packaging, avoiding long-term exposure to air.
Q: Sample policy
A: Charge sample fee, sample fee can be refunded when placing a large order.
Sample delivery time: 1–3 working days for inventory preparation, international delivery 3–7 days (depending on the destination country).
