Description

(2-Hydroxyethyl)Methylbis[3-[(1-Oxooctadecyl)Amino]Propyl]Ammonium Chloride CAS NO 85909-57-5 is a high-purity, quaternary ammonium-based cationic surfactant featuring a branched, multi-alkylamido structure with dual hydrophobic C18 chains and a hydroxyethyl-functionalized head group. It delivers exceptional surface activity, thermal stability, and substantivity—making it ideal for demanding industrial formulations where consistent performance and low foaming are critical. This compound is widely specified by manufacturers in personal care, textile auxiliaries, oilfield chemicals, and specialty agrochemical adjuvants seeking advanced wetting, emulsifying, and antistatic functionality.

Application

• Antistatic agent in synthetic fiber spinning and finishing (e.g., polyester, nylon)
• Emulsifier and co-surfactant in high-stability oil-in-water emulsions for crop protection formulations
• Corrosion inhibitor additive in acidic oilfield stimulation fluids and acidizing packages
• Conditioning and deposition aid in premium hair conditioners and leave-on skin treatments
• Phase-transfer catalyst in organic synthesis involving acyl chloride or isocyanate reactions
• Biocide synergist enhancing efficacy of isothiazolinones and formaldehyde donors in industrial preservative systems
• Surface modifier for nanocellulose and clay dispersion in waterborne coatings
• Electrostatic dissipative additive in polymer masterbatches for electronics packaging films

Basic Information

Product Name	(2-Hydroxyethyl)Methylbis[3-[(1-Oxooctadecyl)Amino]Propyl]Ammonium Chloride
CAS No.	85909-57-5
Molecular Formula	C45H90ClN3O3
Molecular Weight	764.67 g/mol
Synonyms	N,N-Bis(3-(stearlamido)propyl)-N-methyl-N-(2-hydroxyethyl)ammonium chloride; Stearamidopropyl methyl hydroxyethyl ammonium chloride; Bis[3-(octadecylamino)propyl](methyl)(2-hydroxyethyl)ammonium chloride; Methyl-bis[3-(stearamidopropyl)](2-hydroxyethyl)ammonium chloride; CAS 85909-57-5; Hydroxyethyl-methyl-bis(3-stearamidopropyl)ammonium chloride; Stearamidopropyl hydroxyethyl methyl ammonium chloride; N-Methyl-N-(2-hydroxyethyl)-N,N-bis[3-(octadecylamino)propyl]ammonium chloride
EINECS	Not listed (not pre-registered under REACH as of latest update)

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request. All batches conform to stringent internal specifications aligned with ISO 9001:2015 manufacturing practices and meet applicable REACH registration requirements. Testing includes identity confirmation (IR and NMR spectroscopy), assay quantification (HPLC with UV detection), residual solvent analysis (GC-FID), and heavy metals screening (ICP-MS). Custom QC protocols—including USP/EP-compliant testing—can be implemented per client specification.

Storage

Preserve in a tightly closed container, protected from light. Store at room temperature (15–25°C) in a dry, well-ventilated area. Due to its hygroscopic nature, minimize exposure to ambient humidity; use desiccant-equipped secondary packaging for long-term storage. Avoid contact with strong acids, strong alkalis, or oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white waxy solid or viscous paste
Odor	Faint characteristic amine odor
Assay (by HPLC)	≥ 95.0%
Water Content (Karl Fischer)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Chloride (Cl⁻) Content	12.8–13.5%
pH (1% aqueous solution)	5.5–7.0
Identification (IR)	Conforms to reference spectrum
Heavy Metals (as Pb)	≤ 10 ppm
Microbial Limits	Total aerobic count ≤ 100 CFU/g; Yeast/mold ≤ 10 CFU/g; Absence of E. coli, Salmonella, P. aeruginosa, S. aureus

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.