With excellent preservative properties, this product has specific solubility and stability. At 25°C, it dissolves in water at a rate of about 2.5 g per liter, is highly soluble in ethanol and propylene glycol, and has minimal solubility in oils. It is chemically stable under acidic and neutral conditions, but hydrolysis may happen when exposed to high temperatures.
Key Advantages
It offers broad-spectrum antibacterial effects, capable of effectively controlling the growth of molds, yeasts and certain bacteria.
The ideal pH range for its antibacterial activity is 4-7, which is compatible with most cosmetic, food and pharmaceutical formulas.
Furthermore, it is applied at a low dosage of 0.1% to 0.3% in cosmetics and pharmaceuticals, ensuring safety and effective preservation.
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 | Ignition Residue ≤0.1% |
Packaging & Storage
- Packing: 25kg/paper drum or subject to customer requirements
- For Storage: Store in a sealed, dry and light-proof environment where the temperature is below 30°C.
- Packaging Details: 25 kg per barrel, available in either cardboard barrels or polyethylene-lined containers.
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: How is the product packaged in bulk?
A: Standard package is 25 kilograms per drum, adopting cardboard drum with PE lining inside.
Q: What is the toxicity level of this raw material?
A: It belongs to low-toxic substance, and the oral LD₅₀ for rats is more than 5000 mg/kg.
Q: Will this component cause skin sensitivity?
A: Allergic symptoms may occur in a small portion of sensitive crowds.
Request a Quote/Sample
Are you in search of 4-Hydroxybenzoic Acid Methyl Ester (CAS 99-76-3) for your formulation development? Feel free to contact our team for complete specifications, free testing samples and a tailored quotation.
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