Agent Name

Didecyl dimethyl ammonium chloride

Alternative Name


CAS Number




Major Category

Nitrogen Compounds


1-Decanaminium, N-decyl-N,N-dimethyl-, chloride; Aliquat 203; Arquad 10; Arquad 210-50; Astop; BTC 1010; BTC 99; BTCO 1010; Bardac 22; Bardac 2250; Bardac 2270E; Bardac 2280; Bio-Dac; Bio-dac 50-22; Britewood Q; Calgon H 130; D 10P; DDAC; DDC 80; Dairyland brand chg teat dip; Didecyldimethylammonium chloride; Dimethyldidecylammonium chloride; Dodigen 1881; H 130 (molluscicide); Maquat 4480E; N-Decyl-N,N-dimethyl-1-decanaminium chloride; Nissan Cation 2DB; Odex Q; Quartamin D 10E; Quartamin D 10P; Quaternium 12; Quaternium-12; Querton 210CL; Slaoff 91; Timbercote 2000; Tret-O-Lite XC 507; Ammonium, didecyldimethyl-, chloride; [ChemIDplus]


Quaternary Amines


Extremely hygroscopic; [Merck Index] Off-white sticky solid; [ToxPlanet: EFSA: DAR - Vol. 1]


Used as a general purpose disinfectant and sanitizer, to prevent mildew in commercial laundries, for treating cooling tower and oil field flood waters, and as a wood preservative; [Merck Index] Used as an antiseptic; [REPROTOX] Used as a broad-spectrum fungicide, bactericide, and algaecide for horticultural areas and equipment (not used on plants); [ToxPlanet: EFSA: DAR - Vol. 1] Used as an antimicrobial for hard surfaces, laundry, carpets, agricultural equipment, food handling facilities, medical equipment, water storage and purification equipment, swimming pools, industrial water systems (recirculating cooling water, drilling muds, oil well injection, and wastewater), and as a wood preservative; [Reference #1]


A skin irritant that can cause eye injury; Harmful by ingestion; [Merck Index] Causes burns; Not marketed as a pure substance; Available in alcoholic/aqueous solutions; [ToxPlanet: EFSA: DAR - Vol. 1] Increased liver weights (with corresponding histopathology) and increased ALT activity in repeated-dose oral studies of animals; [EPA ChAMP: Hazard Characterizations] Causes contact urticaria; [Kanerva, p. 219]

Reference Link

EPA Pesticide Chemical Search

Exposure Assessment
Vapor Pressure

2.3E-11 mm Hg

Lethal Concentration

LC50 (rat) = 70 mg/m3

Adverse Effects

Hepatotoxin, Secondary


Skin Burns

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information


Chemical Information

Search ChemIDplus

Related Information in HazMap

Occupational diseases associated with exposure to this agent:


Industrial Processes with risk of exposure: