S V Chem

Due to its properties, sodium benzoate is used to preserve food products with an acidic pH, such as fruit pulp and purees, jams, pickles, pickled herring and mackerel, margarine, olives, beer, fruit yogurts, canned vegetables, and salads

Sodium Methyl Paraben is a water-soluble preservative commonly used in pharmaceutical, cosmetic, and personal care formulations.

Chemical name: Sodium 4-hydroxybenzoate methyl ester
Formula: C₈H₇NaO₃
CAS No.: 5026-62-0
Appearance: White to off-white crystalline powder

Key properties

• Freely soluble in water

• Effective antimicrobial preservative (especially against fungi)

• Works best in pH ~4.5–8.0

• Often used with propyl paraben / sodium propyl paraben for broad-spectrum protection

Common uses

• Pharmaceuticals: Syrups, injections, oral liquids

• Cosmetics & personal care: Creams, lotions, shampoos

• Food & beverages: Limited, regulated uses

• Industrial formulations: Where water solubility is required

Typical usage level

• ~0.05–0.3% (depending on formulation and regulations)

Handling & storage

• Low toxicity at recommended levels

• Avoid inhaling dust

• Store tightly closed in a cool, dry place

If you want, I can help with regulatory limits (USP/BP/PhEur), MSDS, comparison with methyl paraben vs sodium methyl paraben, or preservative system suggestions.

Propylparaben has been used as an antimicrobial preservative in the food, cosmetic, and pharmaceutical industries for over 50 years. The chemical formula for propylparaben sodium is NaC10H12O3, it is the sodium salt of propylparaben.