Alkyl Dimethyl Benzyl Ammonium Chloride

Synonyms: Dodecyl Dimethyl Benzyl ammonium Chloride, Benzalkonium Chloride, Alkyldimethylbenzylammonium chloride, Alkyl Dimethyl Benzyl Ammonium Chloride, Benzalkonium Chloride, Alkyl Dimethyl Benzyl Ammonium Chloride - BAC 50
CAS No. 8001-54-5 or 63449-41-2, 139-07-1 

Molecular weight: 340.0
Molecular Formula: C21H38NCl
Structural Formula: C12H25NCH3CH3CH2Cl-+

Alkyl Dimethyl Benzyl Ammonium Chloride is a kind of cationic surfactant, belonging to nonoxidizing boicide. 
It can efficiently withhold algae propagation and sludge reproduction. 
Alkyl Dimethyl Benzyl Ammonium Chloride also has dispersing and penetrating properties, can penetrate and remove sludge and algae, has advantages of low toxicity, no toxicity accumulation, soluble in water, convenient in use, unaffected by water hardness. 
Alkyl Dimethyl Benzyl Ammonium Chloride can be also used as anti-mildew agent, antistatic agent, emulsifying agent and amendment agent in woven and dyeing fields.

Alkyl Dimethyl Benzyl Ammonium Chloride is commonly used as a surfactant and antibacterial agent, and is commonly found in household cleaning products.

Benzalkonium chlorides (BACs) are chemicals with widespread applications due to their broad-spectrum antimicrobial properties against bacteria, fungi, and viruses

Benzalkonium chloride is an organic salt used in cleaning agents, classified as a quaternary ammonium cationic detergent. 

Benzalkonium chlorides (BACs), also known as alkyl dimethyl benzyl ammonium chlorides, alkyl dimethyl (phenylmethyl) quaternary ammonium chlorides, ammonium alkyl dimethyl (phenylmethyl) chlorides, or ammonium alkyl dimethyl benzyl chlorides, are a class of quaternary ammonium compounds (QACs). 
They are usually commercialized as a mixture of compounds with different lengths for the alkyl chain, ranging from C8 to C18, with higher biocide activity for C12 and C14 derivatives

BACs are also among the most common active ingredients in disinfectants (4) used in residential, industrial (7), agricultural, and clinical settings

Alkyl Dimethyl Benzyl Ammonium Chloride is primarily used as a preservative and antimicrobial agent, and secondarily used as a surfactant. Alkyldimethylbenzylammonium chloride works by killing microorganisms and inhibiting their future growth, and for this reason frequently appears as an ingredient in antibacterial hand wipes, antiseptic creams and anti-itch ointments. In cosmetics, its antimicrobial properties are employed to protect products from spoiling. It’s mostly used in personal care products like rash creme, foot odor powder, facial lotion, cleanser, makeup and sunscreen.

The mechanism of bactericidal/microbicidal action is thought to be due to disruption of intermolecular interactions. This can cause dissociation of cellular membrane lipid bilayers, which compromises cellular permeability controls and induces leakage of cellular contents. is a quaternary ammonium antiseptic and disinfectant with actions and uses similar to those of other cationic surfactants. Alkyldimethylbenzylammonium chloride is also used as an antimicrobial preservative for pharmaceutical products. For most multidose aqueous nasal, ophthalmic and otic products, Alkyldimethylbenzylammonium chloride is the preservative of choice. It has been used in eye drops as a preservative since the 1950’s and it is still the most common preservative used in ophthalmic solutions at a concentration of 0.01–0.02%. It is an effective bactericidal and fungicidal agent that helps to minimise the growth of organisms in multidose containers

Alkyldimethylbenzylammonium chloride is further used as a preservative in more than 200 medicinal products for the nasal route of administration and about 10 preparations for inhalation use are authorised on EU markets based on the additional survey performed amongst a limited number of member states. Only a few medicinal products containing Alkyldimethylbenzylammonium chloride are intended for other routes of administrations i.e. cutaneous, oral, oromucosal, rectal, vaginal and parenteral use.

Alkyl Dimethyl Benzyl Ammonium Chloride is commonly used as a surfactant and antibacterial agent, and is commonly found in household cleaning products.

63449-41-2, Benzyldimethyl-n-dodecylammonium chloride, Benzododecinium chloride, Alkylbenzyldimethylammonium chlorides, benzyl-C8-18-alkyldimethyl, Alkyldimethylbenzyl ammonium chloride, Benzalkonium chloride, Benzalkónium-klorid, benzyl-dimethyl-tetradecylazanium chloride, benzyl-dodecyl-dimethylazanium chloride

Alkyl Dimethyl Benzyl Ammonium Chloride is a quaternary ammonium compound and it is the most commonly used antimicrobial preservative.
Benzalkonium chloride makes the cell more permeable

Alkyl Dimethyl Benzyl Ammonium Chloride is used as an antiseptic and preservative in personal care, healthcare, household, pharmaceutical, and industrial products.

Alkyl Dimethyl Benzyl Ammonium Chloride can be found in:

Household cleaning products, such as laundry rinses/detergents 
Personal care products 
Moisturisers, make-up removers, and cleansers
Shampoos and hair products
Wet wipes
Eye drops and ophthalmic solutions, including :
Glaucoma treatments
Antibacterial eye drops
Corticosteroid eye drops
Antihistamine eye drops
Lubricating eye drops/artificial tears
Contact lens solutions
Nasal sprays and asthma inhalers (tiotropium)
Dental products
Plaster of Paris 
Sterilisation solutions for medical instruments 
Industrial products used in:
Fabrication of textiles and dyes.


Colorless to yellowish transparent liquid

Solid content%

Amine salt %

pH(1% water solution)

Usage Methods:
As nonoxidizing boicide, dosage of 50-100mg/L is preferred; as sludge remover, 200-300mg/L is preferred, adequate organosilyl antifoaming agent should be added for this purpose. 
This product can be used together with other fungicidal such as isothiazolinones, glutaraldehyde, dithionitrile methane for synergism, but cannot be used together with chlorophenols. 
If sewage is appeared after thrown of this product in circulating cool water, the sewage should be filtered or blown off in time to prevent their deposit in bottom of collecting tank after froth disappearance.
No blending with anion surfactant.

Package and Storage: 25kg or 200kg in plastic barrel, or confirmed by clients. Storage for two year in room shady and dry place.

Safety Protection: A little smell of almond, no visible stimulation to skin. When contacted, flush with water.

EC / List no.: 616-786-9
CAS no.: 8001-54-5
Regulatory process names
Benzalkonium chloride
Quaternary ammonium compounds, alkylbenzyldimethyl, chlorides

IUPAC names
Alkyldimethylbenzylammonium chloride
ammonium, alkylbenzyldimethyl-,chloride
Benzalkonium Chlorid
Benzalkonium chloride
benzalkonium chloride
Benzalkonium Chloride (4% aqueous solution)
Benzalkonium chloride, alkyl distribution C8-C16
benzyl-dimethyl-tetradecylazanium chloride
benzyl-dodecyl-dimethylazanium chloride
N-alkyl(C8-C16)dimethylbenzylammonium chloride
Quaternary ammonium compounds, alkylbenzyldimethyl, chlorides

Other names
Benzalkonium chloride
Pre-Registration process
Benzalkonium Chloride C16

EC / List no.: 264-151-6
CAS no.: 63449-41-2
Alkylbenzyldimethylammonium chlorides with alkyl chain lengths of C8, C10, C12, C14, C16 and C18
Benzalkonium chloride
C8-18-Alkydimethylbenzyl ammonium chlorides
Quaternary ammonium compounds, benzyl-C8-18-alkyldimethyl, chlorides
(C8-18)alkylbenzyldimetylammoniumklorid (no)
(C8-18)alkylbenzyldimetylammoniumklorid (sv)
(C8-18)alkyylibentsyylidimetyyliammoniumkloridi (fi)
chlorki czwartorzedowych zwiazków amoniowych - chlorki benzylo(C8-18)alkilodimetyloamonium (pl)
composti di ammonio quaternario, benzil-C8-18-alchildimetil, cloruri (it)
compostos de amónio quaternário, benzil-C8-18-alquildimetil, cloretos (pt)
composés d'ammonium quaternaire, benzyl-C8-18-alkyldiméthyle, chlorures (fr)
compuestos de amonio cuaternario, bencil-C8-18-alquildimetil, cloruros (es)
compusi de amoniu cuaternari, benzil-C8-18-alildimetil, cloruri (ro)
ketvirtiniai amonio junginiai, benzil-C8-18-alkildimetil-, chloridai (lt)
kvarterne amonijeve spojine, benzil-C8-18-alkildimetil kloridi (sl)
kvarterni amonijevi spojevi,benzil-C8-18-alkildimetil, kloridi (hr)
kvarterní amoniové sloučeniny, alkyl(C8-C18)(benzyl) dimethylamonium-chlorid (cs)
kvartérne amóniové zlúčeniny, (C8-18-alkyl)(benzyl)di(metyl)amónium-chloridy (sk)
Kvaternaarsete bensüül-C 8-18-alküüldimetüülammooniumiühendite kloriidid (et)
kvaterner ammónium vegyületek, benzil-C8-18-alkildimetilammónium-klorid (hu)
kvaternääriset ammoniumyhdisteet, bentsyyli-C8-18-alkyylidimetyylikloridit (fi)
kvaternære ammoniumforbindelser, benzyl-C8-18-alkyldimethyl-, chlorider (da)
kvaternære ammoniumforbindelser, benzyl-C8-18-alkyldimetyl, klorider (no)
quaternaire ammoniumverbindingen, benzyl-C8-18-alkyldimethyl, chloriden (nl)
Quaternäre Ammoniumverbindungen, Benzyl-C8-18-alkyldimethyl-, Chloride (de)
četraizvietotie amonija savienojumi, benzil-C8-C18-alkildimetil-hlorīdi (lv)
χλωρίδια των βενζυλο-C8-18-αλκυλοδιμεθυλο τεταρτοταγών ενώσεων αμμωνίου (el)
кватернерни амониеви съединения, бензил-C8-18-aлкилдиметил, хлориди (bg)

CAS names
Alkylbenzyldimethylammonium chlorides, benzyl-C8-18-alkyldimethyl

IUPAC names
Alkylbenzyldimethylammonium chlorides, benzyl-C8-18-alkyldimethyl
Alkyldimethylbenzyl ammonium chloride
Benzalkonium chloride
Benzyl(dodecyl)dimethylammonium chloride, benzyl(tetradecyldimethylammonium chloride
benzyl-C8-18-alkyldimethyl chloride
benzyl-decyl-dimethylazanium chloride
benzyl-dimethyl-tridecyl-azanium chloride
N-benzyl-N,N-dimethyldecan-1-aminium chloride
Quaternary ammonium compounds, benzyl-C8-18-alkyldimethyl, chlorides
quaternary ammonium compounds, benzyl-C8-18-alkyldimethyl, chlorides
Quaternary ammonium compounds, benzylcoco alkyldimethyl, chlorides

EC / List no.: 205-351-5
CAS no.: 139-07-1
Mol. formula: C21H38ClN
Benzododecinium chloride
Benzododecinium chloride
benzododecinium chloride

IUPAC names
'Benzenemethanaminium, N-dodecyl-N,N-dimethyl-, chloride
Benzenemethanaminium, N-dodecyl-N,N-dimethyl-, chloride
Benzododecinium chloride
benzododecinium chloride
benzyl(dodecyl)dimethylazanium chloride
Benzyldimethyldodecylammonium chloride; C12 ADBACBarquat LB-50
Benzyldodecyldimethylammonium Chloride
N-Benzyl-N,N-dimethyl-1-dodecanaminium chloride
N-benzyl-N,N-dimethyldodecan-1-aminium chloride

Trade names
Benzyldimethyl-n-dodecylammonium chloride

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