This product is a versatile preservative with specific solubility and stability characteristics. Its solubility at 25°C is approximately 2.5 g/L in water, highly soluble in ethanol and propylene glycol, and slightly soluble in oils and fats. It maintains stable performance under acidic and neutral conditions, but may undergo hydrolysis when exposed to high temperatures.
Key Advantages
It boasts broad-spectrum antibacterial activity, effectively inhibiting the growth of molds, yeasts, and some bacteria.
The optimal pH range for its antibacterial effect is 4-7, which is compatible with most cosmetic, food and pharmaceutical formulations.
In addition, it is used at a low concentration of only 0.1%-0.3% in cosmetics and pharmaceuticals, ensuring safety while achieving good preservation results.
Specifications
| Chemical Name | 4-Hydroxybenzoic acid methyl ester |
| Molecular Formula | C₈H₈O₃ |
| CAS No. | 99-76-3 |
| Appearance | White or almost white crystalline powder |
| Content | 99.0%～100.5% |
| Melting Point | 125～128℃ |
| Acid Value | 4.0～7.0 |
| Ignition Residue | ≤0.1% |
Packaging & Storage
- Packing: .25kg/paper drum or as requested by the customer
- Storage Guidance: Store in a dark, dry and sealed container, with the temperature kept below 30°C. Packaging Specification: 25 kg per barrel, including cardboard barrels and polyethylene-lined barrels
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 storage and handling precautions should be taken for this ingredient?
A: Keep it away from strong oxidizing agents. Compatibility testing is recommended before use, especially under high pH and high temperature conditions.
Q: What is the packaging specification of the product?
A: It is packed in 25 kg per drum with fiber drum and polyethylene inner lining.
Request a Quote/Sample
Sourcing high-grade 4-Hydroxybenzoic acid methyl ester CAS 99-76-3 for your formulation requirements? Reach out to us promptly to obtain full datasheet details, free sample assistance and cost-competitive business pricing.
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