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Item No :
LEAFCHEM053Order(MOQ) :
100kgsProduct Origin :
ChinaColor :
WhiteShipping Port :
Shanghai, ChinaLead Time :
2-3 weeksWeight :
25kgCas No. :
94-26-8Molecular Formula :
C₁₁H₁₄O₃Appearance :
White crystalline powder or granulesAssay :
≥ 99.0% (HPLC)Application :
Cosmetics & Personal Care Pharmaceuticals Industrial Products
Butylparaben, with the molecular formula C₁₁H₁₄O₃ and CAS No. 94-26-8, is one of the members of paraben preservatives featuring the strongest liposolubility and highest antimicrobial efficacy. It is a white crystalline powder with remarkable lipophilicity and extremely low solubility in water. Boasting its excellent antifungal activity (especially against molds and yeasts), it is mainly applied in oil-dominant high-end cosmetics, topical pharmaceuticals and certain industrial products requiring enhanced preservation, and is often used as a "potentiator" in compound preservative systems.
Core Advantages
Technical Specifications
| Item | Specification | Test Method/Remarks |
| Appearance | White crystalline powder or granules | Visual inspection |
| Assay (on dry basis) | ≥ 99.0% | High Performance Liquid Chromatography (HPLC) |
| Melting Point | 68°C-72°C | Capillary method |
| Loss on Drying | ≤ 0.5% | 105°C Loss on Drying method |
| Sulfated Ash | ≤ 0.1% | Gravimetric ignition method |
| Related Substances | Complies with Chinese Pharmacopoeia, USP andequivalent standards | HPLC |
| Solubility | Practically insoluble in water, very freely soluble inethanol, acetone and oils | —— |
Key Application Fields
Cosmetics & Personal Care
Selective application field. Mainly used in high oil-phase ratio or mold-susceptible products such as oily skin care ointments, lip balms, lipsticks, hair waxes and mascaras. Thanks to its high potency, it is typically used as a blended ingredient at a low dosage (e.g., 0.01%–0.05%), and the total concentration must strictly comply with regulatory upper limits.
Pharmaceuticals
Applied in dosage forms including oily ointments, topical gels and suppositories to enhance antimicrobial activity.
Industrial Products
Usable for mold prevention in oil-based and wax-based products.
FAQ ：Butyl Paraben
Q: How is Butyl Paraben different from Methyl/Ethyl/Propyl Paraben?
A: All are classic paraben preservatives, but Butyl Paraben has the strongest lipophilicity and antifungal efficacy, suitable for oil-based, wax-based and high oil-content products; Propyl Paraben balances liposolubility and efficacy for emulsified systems; Ethyl Paraben is mild for sensitive skin formulations; Methyl Paraben has good water solubility for water-based products. They are often compounded to achieve synergistic antimicrobial effects.
Q: What are the core application fields of Butyl Paraben?
A: It is a selective high-potency preservative mainly used in oil-dominant or mold-susceptible products in three major fields:
Cosmetics & Personal Care: Oily skin care ointments, lip balms, lipsticks, hair waxes, mascaras and high oil-content creams;
Pharmaceuticals: Oily ointments, topical gels, suppositories and other oil-based topical dosage forms;
Q: What is the recommended dosage of Butyl Paraben, and can it be used alone?
A: The recommended dosage is typically 0.01%–0.05%. It is not recommended for single use—it is mostly used as a potentiator in compound systems (blended with Methyl/Ethyl/Propyl Paraben). The total concentration of paraben blends must strictly comply with local regulatory upper limits to ensure compliance.
Q: Why is Butyl Paraben especially suitable for oil-based and wax-based cosmetic products?
A: Its excellent liposolubility enables uniform distribution and stable retention in the oil phase, solving the problem of poor preservative compatibility in oil-based/wax-based formulations (e.g., lipsticks, hair waxes). Unlike water-soluble preservatives that are difficult to disperse in the oil phase, it provides targeted and efficient antifungal protection for oil-dominant products.
Q: Why is the regulatory compliance of Butyl Paraben more stringent?
A: As a high-potency paraben preservative, its application is restricted in many countries/regions to ensure safe use. Our Butyl Paraben complies with the latest global paraben regulatory standards, and we will provide one-stop compliance documentation (COA, MSDS) to help buyers confirm local applicable regulations.
Q: Can Butyl Paraben be used in high-temperature processing of formulations?
A: Yes. It has good heat resistance and remains stable in the conventional high-temperature processing of oil-based/wax-based products (e.g., melting of wax-based mascaras, blending of oily ointments). There is no obvious activity loss under normal processing temperature conditions.
Q: What are the packaging and supply capacity of your Butyl Paraben?
A: As a source manufacturer, we support flexible supply from small pilot orders to large-scale bulk wholesale. Standard packaging: 25kg kraft paper bags/fiber drums (moisture-proof and sealed); custom packaging sizes are available for different procurement needs, with stable monthly supply capacity.
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