Benzalkonium Bromide CAS 7281-04-1 | USP/EP Grade Manufacturer & Supplier China

Product Name: Benzalkonium Bromide

CAS Number: 7281-04-1

Molecular Formula: C21H38BrN

Molecular Weight: 384.44 g/mol

Other Names: Benzododecinium bromide, Azepex, Quaternary ammonium compound

Product Introduction

Benzalkonium bromide is a quaternary ammonium salt cationic surfactant commonly used as a disinfectant, bactericide, and preservative. Similar to benzalkonium chloride, it has potent antibacterial properties against Gram-positive and Gram-negative bacteria, fungi, and some viruses.

This product is widely used in pharmaceuticals, cosmetics, personal care products, and industrial cleaning, particularly as a preservative and antimicrobial in pharmaceutical formulations such as ophthalmic drops, nasal sprays, mouthwashes, and skin antiseptics.

Physical & Chemical Properties

Applications

Pharmaceutical: Commonly used in eye drops, nasal drops, mouthwashes, and preservatives

Disinfectant and antibacterial: Kills bacteria, fungi, and some viruses

Cosmetics and personal care: Used as a preservative in skincare products, shampoos, and wipes

Industrial applications: Used in surface disinfection, textiles, papermaking, and water treatment

Product Advantages

✅ Broad-spectrum antibacterial properties with long-lasting effects

✅ High purity (≥98%), meeting pharmacopoeia standards

✅ Suitable for multiple industries (pharmaceuticals, cosmetics, industrial disinfection)

✅ Full COA, MSDS, and other documentation provided

✅ Sourced from the original factory, offering significant price advantages

Company Advantages

🌐 Over 15 years of experience in pharmaceutical and fine chemical export

🏆 Products comply with CP/USP/EP standards

🚢 Global supply, ample inventory, and fast delivery

💼 Technical support and formulation guidance

📑 GMP, ISO, SGS, and other certifications

Company Advantages

🌐 Over 15 years of experience in pharmaceutical and fine chemical export

🏆 Products comply with CP/USP/EP standards

🚢 Global supply, ample inventory, and fast delivery

💼 Technical support and formulation guidance

📑 GMP, ISO, SGS, and other certifications

Packaging and Storage

Packaging: 25kg cardboard drum / 25kg bag

Storage: Store in a cool, dry place away from direct sunlight

Shelf Life: 24 months

❓ FAQ（Frequently Asked Questions）

Q1: What is the main use of Benzalkonium Bromide?
👉 It is mainly used as a disinfectant, preservative, and antiseptic in pharmaceuticals and cosmetics.

Q2: Is Benzalkonium Bromide the same as Benzalkonium Chloride?
👉 They are similar quaternary ammonium compounds, but differ in counter ions (Bromide vs. Chloride), leading to slightly different solubility and application.

Q3: Can it be used in eye drops?
👉 Yes, it is widely used as a preservative in ophthalmic solutions.

Q4: What industries use Benzalkonium Bromide?
👉 Pharmaceuticals, cosmetics, disinfectants, water treatment, textile, and personal care.

Q5: What is the solubility?
👉 It is soluble in water and ethanol.

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