Sodium isobutylparaben

Sodium isobutylparaben (CAS 84930-15-4) is the sodium salt form of isobutylparaben, offering improved water solubility compared to its parent ester. It functions as an antimicrobial preservative.

This chemical protects formulations against bacterial and fungal contamination to extend product shelf life. In rinse-off and leave-on cosmetic formulations, it controls microbial growth at low use concentrations.

Common applications include lotions, shampoos, and cleansers, allowing formulators to meet preservation efficacy requirements. Pharmaceutical topical preparations such as creams and ointments use it frequently.

It is preferred where a water-soluble paraben preservative is needed to maintain sterility and product integrity. Its salt form integrates readily into aqueous systems for water-based personal care products.

The compound is also evaluated in multi-preservative systems where paraben blends are used to achieve synergistic antimicrobial coverage. This allows for effective preservation across a wider pH range.

Sodium isobutylparaben is typically supplied as a white powder or crystalline solid. It is available in cosmetic-grade and pharmaceutical-grade specifications to meet the purity requirements of different frameworks.

Buyers should confirm compliance documentation, including CoA and safety dossiers, for regulatory purposes. This is essential given ongoing regulatory scrutiny of paraben-class preservatives in key markets.