Sodium ethylparaben is a professional water-soluble preservative customized for aqueous formula systems. It features outstanding water solubility, capable of dissolving rapidly in room-temperature purified water and exhibiting good compatibility with polar organic solvents such as ethanol. Meanwhile, the product is completely insoluble in non-polar substances including mineral oil, grease and diethyl ether. Under standard room temperature and atmospheric pressure, the raw material maintains stable chemical properties without deterioration. It retains stable antibacterial activity and excellent high-temperature resistance in neutral and weakly alkaline aqueous systems, fully adaptable to conventional heating processes for daily chemical and food production. However, strongly acidic environments will cause the precipitation of ethylparaben, resulting in complete loss of preservative efficacy and failure of formula antibacterial protection.
Key Advantages
This product possesses powerful broad-spectrum bacteriostatic and antifungal capabilities, effectively inhibiting common waterborne bacteria, molds and yeasts.
Its stable and long-lasting preservative performance outperforms most ordinary water-based preservatives, reliably maintaining the microbial stability of finished products throughout the shelf life.
Eliminating the need for solubilization aids like ethanol and propylene glycol, the ingredient can be fully dissolved in room-temperature pure water, simplifying production procedures and avoiding potential product irritation and residual risks caused by organic solvents.
Eliminating the need for solubilization aids like ethanol and propylene glycol, the ingredient can be fully dissolved in room-temperature pure water, simplifying production procedures and avoiding potential product irritation and residual risks caused by organic solvents.
Furthermore, the high-purity raw material complies with national standards for cosmetics, food additives and pharmaceutical excipients, delivering mild texture and excellent safety within standard dosage ranges.
Specifications
| Chemical Name | Sodium 4-hydroxybenzoate methyl ester |
| Molecular Formula | C9H9NaO₃ |
| CAS No. | 35285-68-8 |
| Appearance | White or almost white crystalline powder |
| Content | 99.0%～103.0 |
| PH Value(1g/L H2OSolution) | 9.5～10.5 |
| H2O( w/%) | ≤5.0% |
| (Pb)mg/kg | ≤2.0 |
| Sulfate Content (as SO₄²⁻) | ≤0.030% |
| Chloride (as Cl) | ≤0.035% |
Applications
As a versatile broad-spectrum water-soluble preservative, sodium ethylparaben is widely applied in fine chemical, personal care, food processing and pharmaceutical industries. In cosmetics and personal care sectors, it is suitable for diverse rinse-off and leave-on aqueous products, including skin toners, essence liquids, shampoos, body washes, toothpaste and water-based facial masks, meeting domestic cosmetic regulatory requirements. In the food industry, it serves as an effective antiseptic for fruit juices, carbonated drinks, seasoning sauces and prefabricated liquid foods, restraining microbial growth and extending product shelf life in line with national food testing specifications. It also acts as a core antibacterial auxiliary material for external pharmaceutical solutions, skincare preparations and water-based cleaning products, meeting professional pharmaceutical-grade production standards.
Packaging & Storage
The standard packaging specification is 25kg per paper drum equipped with double-layer food-grade moisture-proof plastic inner bags to ensure excellent sealing performance, and customized packaging solutions are available according to client requirements.
For storage management, the product must be kept in cool, dry, clean and well-ventilated warehouses. Direct intense light exposure and high-temperature environments are strictly prohibited, and mixed storage with strong acid, strong alkali and oxidizing chemical raw materials is forbidden. Due to its strong moisture absorption property, the product requires full sealing during storage to prevent moisture absorption and quality deterioration.
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: What's your quality management system in the plant?
A: We put product quality in the first place. Full-process quality inspection including IQC, IPQC, FQC and OQC is applied. Professional QA/QC staff ensure stable quality before delivery.
Q: Is OEM, ODM and OBM service available?
A: Absolutely available.
Q: Which shipping terms do you use?
A: FOB is our regular term; extra terms will be discussed later.
Request a Quote/Sample
If you require 4-hydroxybenzoate methyl ester 35285-68-8 for your formula research and production, please connect with us. We will provide thorough documentation, free samples and a reasonable price quote.
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