Butyl p-Hydroxybenzoate CAS 94-26-8 Bulk Supplier | High-Purity Paraben Ester

Butyl p-Hydroxybenzoate (CAS 94-26-8), commonly known as Butyl Paraben, is a widely used cosmetic and pharmaceutical preservative ester. Supplied as a white to off-white crystalline powder with high purity, it is selected for formulations where antimicrobial stability, regulatory compliance, and formulation compatibility are essential.

Product Description

Butyl p-Hydroxybenzoate is part of the paraben family — esters of p-hydroxybenzoic acid — known for their effectiveness in preserving cosmetic, toiletry, and topical pharmaceutical products. Its esterified structure provides reliable preservative performance against a broad spectrum of microorganisms, while its physical and chemical properties make it easy for formulators to incorporate into emulsion and lotion systems.

The material is supplied as a solid powder with a well-defined purity profile, enabling predictable dose control, efficient blending, and consistent preservation performance across diverse product lines. Its stability in typical cosmetic and personal care pH ranges contributes to formulation flexibility and consistent product quality.

Technical Properties

• CAS Number: 94-26-8
• Purity: High-purity Butyl p-Hydroxybenzoate (typically ≥98% by HPLC)
• Appearance: White to off-white crystalline powder
• Molecular Formula: C₁₁H₁₄O₃
• Molecular Weight: 206.23 g/mol
• Common Synonyms: Butyl Paraben, Butyl p-Hydroxybenzoate

Applications & Industries

Butyl p-Hydroxybenzoate is a versatile preservative ingredient widely used in personal care, cosmetic, and pharmaceutical manufacturing:

• Cosmetics & Personal Care: Commonly used to preserve emulsions, creams, lotions, shampoos, and body washes, helping extend shelf life and maintain microbiological stability.
• Dermatological & Topical Products: Used in medicated creams, ointments, and therapeutic formulations where preservative efficacy must be balanced with skin compatibility.
• Pharmaceutical Preparations: Applied in liquid and semi-solid drug formulations to help protect against microbial contamination during storage and use.
• Contract Manufacturing & Private Label: Ideal for manufacturers producing turnkey cosmetic or pharmaceutical products requiring dependable preservative performance in bulk.

Key Advantages

Proven preservative class: Butyl Paraben is part of a widely studied and formulation-friendly preservative family, valued for broad antimicrobial support.

High-purity raw material: Provides reliable performance and supports precise formulation design with predictable outcomes.

Formulation-ready powder: Crystalline powder form supports accurate weighing, easy blending, and uniform integration into base formulas.

Compatibility with diverse systems: Works effectively in water-based, emulsion, and lotion systems across personal care and topical products.

Reliable batch consistency: Controlled analytical profile enables reproducible performance for QA/QC teams and regulatory records.

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