Methyl Paraben
Methyl Paraben is a white to off-white crystalline powder widely used as an antimicrobial preservative in cosmetics, pharmaceuticals, and food products. It is a member of the paraben family of preservatives known for their effectiveness against a broad spectrum of bacteria and fungi. Methyl Paraben helps extend the shelf life of products by preventing microbial growth without affecting the product’s texture or color.
Methyl Paraben
Primary Uses
- Cosmetics and Personal Care Products
- Preservative in creams, lotions, shampoos, and makeup to prevent microbial contamination.
- Enhances product stability and shelf life.
- Pharmaceuticals
- Used as a preservative in topical formulations, syrups, and injectables to inhibit microbial growth.
- Food Industry
- Acts as a preservative in baked goods, beverages, and processed foods to prevent spoilage.
Secondary Uses
- Industrial Applications
- Used in the preservation of adhesives and inks to prevent bacterial degradation.
- Laboratory Reagent
- Employed as a preservative in biological and chemical reagents.
1. Basic Identification Attributes
- Chemical Name (IUPAC): Methyl 4-hydroxybenzoate
- Common/Trade Name: Methyl Paraben
- CAS Number: 99-76-3
- HS Code: 2916.39.00
- Synonyms: Methyl p-hydroxybenzoate; E218; Parahydroxybenzoic acid methyl ester
2. Physical & Chemical Properties
- Physical State: Powder or crystalline solid
- Color & Odor: White to off-white; odorless or faint aromatic odor
- Melting Point: 125 – 128°C
- Solubility: Slightly soluble in water; soluble in alcohol, ether, and chloroform
- Density: Approx. 1.32 g/cm³
3. Safety & Hazard Attributes
- GHS Classification: Not classified as hazardous at typical use concentrations
- Toxicity: Low toxicity; generally recognized as safe (GRAS) at regulated levels
- Exposure Limits: No specific occupational exposure limits; standard handling precautions
4. Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry, well-ventilated place away from strong oxidizers
- Container Type: Supplied in sealed bags or containers
- Shelf Life: Typically 24 months if stored properly
- Handling Precautions: Avoid dust formation; use gloves and dust masks if necessary
5. Regulatory & Compliance Attributes
- Complies with FDA, USP, and European pharmacopoeia standards
- Approved as a food preservative (E218) and cosmetic preservative under various regulations
6. Environmental & Health Impact
- Biodegradability: Biodegradable under environmental conditions
- Ecotoxicity: Low environmental impact when used as directed
- Bioaccumulation: Not expected to bioaccumulate
- Carcinogenicity/Mutagenicity: Not classified as carcinogenic or mutagenic
Safety Handling Precautions
- PPE Required: Gloves, dust mask, and safety goggles recommended during handling
- Handling Guidelines: Use in well-ventilated areas; avoid inhalation of dust
- Storage Measures: Keep containers tightly closed and stored away from incompatible materials
First Aid Measures
- Inhalation: Move to fresh air if irritation occurs
- Skin Contact: Wash thoroughly with soap and water
- Eye Contact: Rinse eyes with plenty of water for at least 15 minutes; seek medical attention if irritation persists
- Ingestion: Rinse mouth; seek medical advice if symptoms occur
Firefighting Measures
- Fire Hazards: Combustible solid
- Extinguishing Media: Use water spray, foam, dry chemical, or carbon dioxide extinguishers
- Special Precautions: Wear protective equipment to avoid dust inhalation
- Hazardous Combustion Products: May produce carbon oxides and other toxic fumes under fire conditions
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Calcium Propionate
Calcium Propionate is the calcium salt of propionic acid, appearing as a white, crystalline powder or granules with a slightly salty taste and low odor. It is highly soluble in water and used primarily as a food preservative and mold inhibitor. Calcium Propionate inhibits the growth of mold, bacteria, and fungi, making it especially valuable in baked goods, dairy products, and animal feed to extend shelf life and prevent spoilage. It also finds application in pharmaceuticals and cosmetics as a preservative and antimicrobial agent.
Chlorobutanol BP
Chlorobutanol BP (also known as 1,1,1-Trichloro-2-methyl-2-propanol) is a white crystalline solid or powder, with a slight camphor-like odor and a bitter taste. It is a multifunctional preservative, anesthetic, and antimicrobial agent commonly used in pharmaceutical, cosmetic, and personal care products. Chlorobutanol exhibits bacteriostatic and fungistatic properties, making it effective in preventing microbial contamination in aqueous formulations. It also possesses mild local anesthetic effects, frequently used in ophthalmic and injectable preparations as a preservative and stabilizer.
Guanidine Carbonate
Guanidine Carbonate is a white crystalline powder, highly soluble in water, with strong basicity and high nitrogen content. It’s a versatile chemical intermediate widely used in pharmaceuticals, agriculture, polymer chemistry, textiles, and laboratory research. Its buffering properties and reactivity make it valuable in synthesis, pH regulation, and as a nitrogen source.
Propyl Paraben Sodium BP
Propyl Paraben Sodium BP is the sodium salt derivative of propyl paraben, widely used as an effective antimicrobial preservative. It offers improved water solubility compared to propyl paraben and is commonly employed in pharmaceutical, cosmetic, and food products to inhibit the growth of bacteria, molds, and yeasts, thereby extending shelf life and ensuring product safety.
Sodium Benzoate
Sodium Benzoate is the sodium salt of benzoic acid, appearing as a white, crystalline powder that is highly soluble in water. It is widely used as a preservative due to its antimicrobial properties, especially effective against yeast and bacteria in acidic conditions. Sodium Benzoate is commonly employed in the food, beverage, pharmaceutical, and cosmetic industries to extend shelf life and maintain product quality. It meets food-grade and pharmaceutical-grade purity standards, ensuring safety for consumption and topical use.
Sodium Propyl Paraben
Sodium Propyl Paraben is the sodium salt of propylparaben, a white to off-white crystalline powder or granule with the chemical formula C₁₀H₁₂NaO₃. It is a water-soluble antimicrobial preservative used extensively in personal care, pharmaceutical, and food products. Packaged in 25kg containers, it offers excellent stability and effectiveness over a wide pH range. Its antifungal and antibacterial properties make it a reliable choice for preventing microbial contamination and extending shelf life.
Zinc Pyrithione
Zinc Pyrithione is a high-purity antimicrobial and antifungal compound derived from the coordination of zinc with pyrithione (1-hydroxy-2-pyridinethione). It is widely used as an active ingredient in personal care formulations, industrial coatings, and materials preservation due to its broad-spectrum biocidal efficacy against bacteria, fungi, and algae. Its excellent thermal stability and compatibility with various systems make it ideal for diverse industrial and cosmetic applications.

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