Sodium Methyl Paraben

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Sodium Methyl Paraben is the sodium salt of methylparaben, a widely used preservative in cosmetics, pharmaceuticals, and food. It is a white, odorless, crystalline powder that is water-soluble and effective against a broad spectrum of bacteria, molds, and yeasts. As a paraben derivative, it helps prevent microbial contamination and extends shelf life. It is often preferred over methylparaben in formulations where water solubility is required.

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Category: Preservatives Tags: Antimicrobial Agent, Methylparaben Sodium Salt, Pharmaceutical formulations, Preservative, Sodium Methylparaben

Description

Table of Contents

Sodium Methyl Paraben

Primary Uses

Pharmaceuticals

Used as an antimicrobial preservative in oral and topical medicinal formulations.
Stabilizes syrups, suspensions, creams, and eye drops by preventing microbial growth.

Cosmetics & Personal Care

Added to lotions, creams, shampoos, and deodorants to inhibit bacterial and fungal contamination.
Ensures product safety and longevity in water-based personal care items.

Food Industry

Utilized in beverages, sauces, and processed foods as a preservative to control spoilage.
Helps extend shelf life by inhibiting yeast and mold growth (where permitted by food regulations).

Secondary Uses

Veterinary Products

Used in animal pharmaceuticals and topical veterinary treatments as a preservative.

Laboratory & Research Chemicals

Acts as a reference or control preservative in microbiological and pharmaceutical research.

Textile & Leather Processing

Occasionally used in water-based treatments where preservation against microbial contamination is needed.

KEY PRODUCT FEATURES

1. Basic Identification Attributes

Chemical Name (IUPAC): Sodium 4-(methoxycarbonyl)phenolate
Common/Trade Name: Sodium Methyl Paraben
CAS Number: 5026-62-0
HS Code: 2918.23.00
Synonyms: Methylparaben sodium salt; Sodium methyl 4-hydroxybenzoate

2. Physical & Chemical Properties

Physical State: Solid (crystalline powder)
Color & Odor: White, odorless
Solubility: Highly soluble in water and alcohol
pH (1% solution): Approx. 9.5–10.5
Melting Point: ~125–128°C (decomposes)
Stability: Stable under normal storage conditions

3. Safety & Hazard Attributes

GHS Classification: Not classified as hazardous under normal conditions
Toxicity: Low; considered safe at approved concentrations in food and personal care products
Exposure Limits: Follow GMP and cosmetic/pharmaceutical regulations
Allergies: Rare cases of skin irritation or allergic response in sensitive individuals

4. Storage & Handling Attributes

Storage Conditions: Store in a cool, dry place, away from light and moisture
Container Type: Food-grade or pharmaceutical-grade plastic containers or fiber drums
Shelf Life: Typically 2–3 years under recommended conditions
Handling Precautions: Avoid inhalation of dust; use gloves and eye protection when handling in bulk

5. Regulatory & Compliance Attributes

Complies with relevant pharmacopeial standards (e.g., USP, BP, EP)
Approved for use by FDA, EFSA, and other regulatory authorities within defined limits
Listed under international chemical inventories (REACH, TSCA, AICS)
Subject to concentration limits for use in cosmetics and foods as per regional legislation
Requires appropriate labeling when used in consumer products
Manufactured in accordance with cGMP and ISO quality systems

6. Environmental & Health Impact

Biodegradability: Readily biodegradable in natural environments
Ecotoxicity: Low environmental impact at permitted usage levels
Bioaccumulation: Negligible due to rapid breakdown and low persistence

SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

PPE Required: Gloves, goggles, lab coat or protective clothing
Handling Guidelines: Avoid contact with eyes and inhalation of powder
Storage Measures: Keep tightly sealed in original containers; avoid exposure to heat or humidity

First Aid Measures

Inhalation: Move to fresh air; seek medical attention if respiratory symptoms develop
Skin Contact: Wash with soap and water; discontinue use if irritation occurs
Eye Contact: Rinse with plenty of water; seek medical attention if irritation persists
Ingestion: Rinse mouth with water; consult a healthcare provider if necessary