Ester Quaternary Ammonium Salt (EQ-90) CAS 91995-81-2 Biodegradable Cationic Surfactant for Fabric Softener & Hair Conditioner

Polyhexamethylene Biguanide Hydrochloride (Abbr: PHMB, CAS:91995-81-2,EINECS:295-470-0, HS Code:3808940000) is a broad-spectrum cationic polymeric biocide, available as colorless to pale yellow transparent liquid or white crystalline powder. We supply industrial, cosmetic and pharmaceutical grades complying with international quality standards. It features excellent water solubility, low toxicity, non-irritating properties and long-lasting antibacterial effect against bacteria, fungi and viruses. Widely used as disinfectant, preservative, water treatment biocide and cosmetic antibacterial additive across multiple industries.

Applications
Water Treatment Industry (Core Application)
High-efficiency bactericidal algaecide for swimming pools, industrial circulating water, cooling towers and wastewater systems. It effectively kills and inhibits bacteria, algae and microorganisms, prevents biofilm formation, maintains water quality stability with low dosage and long duration.
Disinfection & Hygiene Products
Core active ingredient for medical disinfection, hand sanitizers, surface disinfectants and wound care products. It provides broad-spectrum sterilization against Gram-positive and Gram-negative bacteria, fungi and enveloped viruses, with low irritation to skin and mucous membranes.
Cosmetics & Personal Care
Widely used as preservative and antibacterial agent in shampoos, body washes, skin care products and wet wipes. It inhibits microbial growth, extends product shelf life, and fully complies with global cosmetic safety regulations including EU Cosmetics Regulation.
Textile & Paper Industry
Applied as antibacterial finishing agent for textiles, non-woven fabrics and paper products. It endows materials with long-lasting antibacterial and anti-mildew properties, suitable for medical textiles, household fabrics and food packaging papers.
Agriculture & Animal Husbandry
Used as environmental disinfectant for farms, livestock houses and aquaculture ponds. It controls pathogenic microorganisms, reduces disease transmission and improves breeding environment safety.
Other Industrial Applications
Added to coatings, adhesives and leather products as anti-mildew preservative. Also used in oilfield water injection, metalworking fluids and industrial circulating systems to control microbial contamination.

Product Advantages
✅ Broad-spectrum antibacterial: Effective against bacteria, fungi, viruses and algae with wide antimicrobial spectrum
✅ Low toxicity & non-irritating: Safe for human contact, no skin or mucous membrane irritation at recommended concentrations
✅ Long-lasting effect: Slow-release mechanism provides sustained antibacterial activity, long duration
✅ Excellent water solubility: Easy to dilute and mix, convenient for on-site preparation and use
✅ High stability: Resistant to high temperature, acid and alkali, no decomposition under normal usage conditions
✅ Eco-friendly: Biodegradable, no harmful residues, low environmental impact

Packaging & Storage
Standard packaging: 25kg plastic drums, 200kg sealed drums for liquid products; 25kg fiber drums for powder products. Store in a cool, dry and well-ventilated warehouse at 5–30°C. Keep containers tightly sealed, away from strong oxidants, alkalis and direct sunlight. Shelf life is 24 months under proper storage conditions.
Safety Information
Classified as non-hazardous goods for regular transportation. May cause mild irritation to eyes and skin at high concentrations. Wear protective gloves and goggles during handling. In case of contact with skin or eyes, rinse immediately with plenty of clean water. Complete MSDS and relevant qualification certificates are available upon request.

1. 1.A 70,000 ㎡ warehouse (20,000 MT capacity) with moisture-proof and temperature-controlled systems, enabling efficient fulfillment of large-volume orders.
2. 2.Free samples (Ship within 3-7 days) to let you test products at zero trial cost.
3. 3.Transparent lead time for hazardous chemicals: 45–60 days, with clear delivery schedules.
4. 4.Certified with a Hazardous Chemical Business License and ISO certification, ensuring smooth customs clearance.
5. 5.6 packaging options with customizable logos to minimize product loss during transportation.
6. 6.Over 400 chemical SKUs available for one-stop procurement, helping you reduce sourcing costs.