Sodium butylparaben is a hydrophilic preservative belonging to the paraben salt family with distinct environmental adaptability. This raw material possesses good water solubility, only slight solubility in ethanol, and zero solubility in various oily solvents. Its structural stability is sensitive to pH changes: acidic conditions (pH < 7) will trigger hydrolysis, converting water-soluble sodium butylparaben back to oil-soluble butylparaben, which easily precipitates out of aqueous solutions. The ingredient achieves the best antimicrobial activity under acidic and neutral conditions ranging from pH 4 to 7, whereas alkaline environments will significantly weaken its preservative efficiency. Proper sealed storage in shaded, dry and ventilated warehouses is essential, keeping away from oxidizing and acidic chemical supplies.
Key Advantages
Designed for aqueous finished products, sodium butylparaben features intuitive water solubility and does not require additional organic solubilizers.
It provides reliable antibacterial and anti-mold protection for water-based formulas within its effective pH working window.
The product has targeted inhibitory effects on common spoilage microorganisms in personal care and pharmaceutical products.
Nevertheless, limited by inherent toxicological characteristics and strict international and domestic regulatory requirements, the ingredient has extremely low practical utilization in current commercial production, resulting in narrow applicable scenarios.
Specifications
| Chemical Name | Sodium butylparaben |
| Molecular Formula | C11H13NaO₃ |
| CAS No. | 36457-20-2 |
| Appearance | White or almost white crystalline powder |
Applications
In theoretical formula design, this water-soluble antimicrobial agent can be used for preservative and antibacterial treatment of personal care cosmetics, daily washing products and topical pharmaceutical preparations. It is developed to solve the water compatibility problem of traditional butylparaben. In actual industrial application, continuous improvement of safety supervision standards and toxicological risk assessment restrictions have made sodium butylparaben rarely used in formal product formulas and commercial production.
Packaging & Storage
Packaging ：25kg per paper drum ,o r as per customer's requirements.
The raw material requires airtight sealed storage to isolate external moisture. It shall be placed in cool, dry and well-ventilated indoor storage areas. Avoid damp environments to prevent moisture absorption and material deterioration. Meanwhile, keep the product completely isolated from strong oxidants and acidic chemical materials to prevent chemical hydrolysis and structural failure of the raw material.
Quality & Service
Manufactured in an ISO-certified facility, each batch comes with a Certificate of Analysis (COA). We offer reliable supply, technical support, and competitive pricing for bulk orders.
FAQ
Q: In what ways do you control factory production quality?
A: High quality is always our core principle. We implement full-range quality checking from incoming materials to finished goods. The QA/QC team strictly checks every item before shipment.
Q: How soluble is the product in common solvents?
A: The product dissolves readily in water, has limited solubility in ethyl alcohol, and barely dissolves in grease and oily substances.
Q: Which materials cannot be mixed with the product?
A: This item is not compatible with powerful oxidizing agents and concentrated strong acids. It may change color once coming into contact with iron and some metal ions.
Request a Quote/Sample
Looking for Sodium Butyl 4-hydroxybenzoate 36457-19-9 to add into your formula systems? Get in touch with us to receive a full technical datasheet, complimentary samples and a cost-effective quote.
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