Benzalkonium Chloride CAS#63449-41-2
Benzalkonium chlorides (BACs), also referred to as alkyl dimethyl benzyl ammonium chlorides, alkyl dimethyl (phenylmethyl) quaternary ammonium chlorides, ammonium alkyl dimethyl (phenylmethyl) chlorides, or ammonium alkyl dimethyl benzyl chlorides, belong to the class of quaternary ammonium compounds (QACs).
These compounds are typically supplied as mixtures containing alkyl chains with lengths ranging from C8 to C18. Among them, the C12 and C14 derivatives exhibit particularly strong biocidal activity.
Benzalkonium Chloride Chemical Properties
| Melting point | -5°C |
| Boiling point | 100°C |
| density | 0,989 g/cm3 |
| vapor pressure | 130 mPa @ 20°C |
| Fp | >100°C |
| storage temp. | 2-8°C |
| solubility | Chloroform (Slightly), Methanol (Slightly) |
| form | semisolid |
| color | Pale yellow |
| PH Range | 46182 |
| biological source | synthetic |
| Water Solubility | Miscible with water, methanol and acetone. |
| Merck | 141059 |
| BRN | 4062599 |
| Stability: | Hygroscopic |
| Major Application | liquid formulation |
| ophthalmics | |
| parenterals | |
| pharmaceutical | |
| semi-solid formulation | |
| Cosmetics Ingredients Functions | SURFACTANT - DISPERSING |
| ANTIMICROBIAL | |
| PRESERVATIVE | |
| DEODORANT | |
| ANTISTATIC | |
| Cosmetic Ingredient Review (CIR) | Benzalkonium Chloride (63449-41-2) |
| InChI | 1S/C19H34N.ClH/c1-4-5-6-7-8-9-10-14-17-20(2,3)18-19-15-12-11-13-16-19;/h11-13,15-16H,4-10,14,17-18H2,1-3H3;1H/q+1;/p-1 |
| InChIKey | TTZLKXKJIMOHHG-UHFFFAOYSA-M |
| SMILES | [Cl-].CCCCCCCCCCCCCC[N+](C)(C)Cc1ccccc1 |
| EPA Substance Registry System | C8-18-Alkydimethylbenzyl ammonium chlorides (63449-41-2) |
Safety Information
| Hazard Codes | C,N |
| Risk Statements | 21/22-34-50 |
| Safety Statements | 36/37/39-45-61-60-26 |
| RIDADR | UN 2923 8/PG 3 |
| WGK Germany | 3 |
| RTECS | BO3151000 |
| F | 46090 |
| TSCA | TSCA listed |
| HazardClass | 8 |
| PackingGroup | III |
| HS Code | 34021200 |
| Storage Class | 8A - Combustible corrosive hazardous materials |
| Hazard Classifications | Acute Tox. 4 Oral |
| Aquatic Acute 1 | |
| Aquatic Chronic 1 | |
| Eye Dam. 1 | |
| Skin Corr. 1B | |
| Toxicity | LD50 oral in mouse: 150mg/kg |
Product Application of Benzalkonium Chloride CAS#63449-41-2
Benzalkonium chloride is a cationic surfactant widely used in textile dyeing, fabric softeners, antistatic agents, emulsifiers, and conditioning agents. It also functions as a cationic detergent and is commonly utilized as a preservative in pharmaceutical preparations, including eye drops, ear drops, nasal drops, and sprays.
In addition, benzalkonium chloride is an active ingredient in various personal care products such as hand sanitizers, shampoos, deodorants, and wet wipes. It has also been studied for its effects on conjunctival epithelial cells in vitro.



