Bronopol
A highly effective, water-soluble antimicrobial compound used as a preservative and bactericide in cosmetics and industrial applications
Bronopol/2-Bromo-2-nitro-1,3-propanediol
- CAS Number: 52-51-7
- UN NO.: 3241
- EINECS NO.: 200-143-0
- Molecular Formula: C3H6BrNO4
- Purity (%): 99 min
- Appearance: White or off-white crystalline powder.
- Packing: 25kg/bag or 25kg/cardboard buckets
- Other Names: 2-Nitro-2-bromo-1,3-propanediol; 1,3-Propanediol, 2-bromo-2-nitro-; Bronocot
Bronopol/2-Bromo-2-nitro-1,3-propanediol Specification
| ITEMS | SPECIFICATIONS |
| Assay % | 99 min |
| Water % | 0.5 max |
| Ph value | 5.0-7.0 |
| Melting Point ℃ | 127-131 |
Bronopol/2-Bromo-2-nitro-1,3-propanediol for Sale
Low Dosage, High Efficiency: Bronopol works at very low concentrations (0.01%–0.1%). It kills bacteria quickly without raising COD levels, saving your treatment cost and reducing downstream load.
Broad‑Spectrum Antimicrobial: It is highly effective against Gram‑positive and Gram‑negative bacteria, yeast, and fungi – especially Pseudomonas aeruginosa, a common problem in water systems and personal care products.
Dual‑Mode Action, Low Resistance: Bronopol attacks microbes in two ways – damaging vital enzymes and generating reactive oxygen that destroys cell membranes. This multi‑target action makes it hard for germs to develop resistance, ideal for long‑term continuous dosing.
Excellent Biofilm & Slime Control: In cooling water, paper pulp, and metalworking fluids, Bronopol prevents biofilm and slime formation. This protects equipment from microbial corrosion and keeps systems clean.
Good Compatibility & Low Environmental Impact: It works well with most nonionic, anionic, and cationic surfactants (avoid contact with reactive metals like Al, Zn). Bronopol is biodegradable and has low toxicity, helping you meet environmental regulations.
Stable Across Wide Conditions: Bronopol remains effective in both acidic and alkaline media. It only releases trace formaldehyde at high temperature or high pH, which enhances its biocidal effect without harming the environment.
What is Bronopol Used for?
Cosmetics & Personal Care: It works as a preservative in creams, lotions, shampoos, and makeup. It stops bacteria and fungi from growing and keeps products fresh longer.
Industrial Biocide / Water Treatment: It controls slime and bacteria in cooling towers, paper mills, and industrial water systems. It helps prevent biofouling and keeps equipment clean.
Household & Daily Chemical Products: It preserves water-based household cleaners, polishes, paints, and adhesives. It stops them from spoiling or growing mold.
Medical & Veterinary Use: It is used in pharmaceutical products and veterinary teat dips. It helps prevent bacterial growth in medicines and helps protect livestock from infections.
Agriculture: It controls bacterial diseases on crops like cotton and mushrooms. It helps protect plants and can be used as a seed treatment.
FAQ of Bronopol/2-Bromo-2-nitro-1,3-propanediol
Bronopol is stable up to pH 8.0. Above pH 8.5, it may degrade faster. For alkaline systems, we recommend combining it with other biocides like isothiazolinones.
Yes. It can irritate skin and eyes and may cause allergic reactions. Always wear gloves and goggles. Avoid inhaling dust. MSDS provided with every shipment.
As direct manufacturers, HOOCHEMTEC controls the production supply chain. We prioritize reliable inventory and scheduling for our partners to ensure your production continuity is never interrupted.
Our Bronopol is supplied in 25kg/bag or 25kg/cardboard buckets for safe handling and efficient transport.
Store in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Keep containers tightly sealed to prevent moisture absorption.
Bronopol Supplier - HOO CHEMTEC
HOO CHEMTEC: Your Trusted Bronopol Supplier
We are a direct manufacturer of high-purity Bronopol (2-Bromo-2-nitro-1,3-propanediol) with stable annual production capacity. Every batch is tested in our ISO-certified lab, and we provide Certificate of Analysis (CoA) with each shipment.
Why choose us?
Reliable quality – purity ≥99%, white crystalline powder
Dangerous goods expertise – Bronopol is classified as UN 3241, Class 4.1. We handle all hazardous documentation (MSDS, transport certificate, UN‑approved packaging) to ensure safe, compliant delivery.
Flexible supply – 25kg bags, 25kg cardboard buckets or custom packaging
Global export experience – full documentation for smooth customs clearance
Free samples available for pre‑order testing
Partner with HOO CHEMTEC for consistent Bronopol quality and professional dangerous goods logistics. Contact us today.
