Methoxy benzophenone Sulfonic Acid

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Methoxy Benzophenone Sulfonic Acid is a water-soluble UV filter widely used in sunscreen and cosmetic formulations. It absorbs ultraviolet (UV) radiation, primarily in the UVB range, protecting skin and products from harmful effects of sun exposure. This compound appears as a white to off-white powder or crystalline solid and is valued for its photostability and broad-spectrum UV protection.

Description

Primary Uses

  1. Sunscreen and Sun Care Products

    • Acts as a UVB filter in sunscreens, lotions, and sprays to protect skin from sunburn.

    • Enhances the photostability and effectiveness of broad-spectrum sun protection formulations.

  2. Cosmetics and Personal Care

    • Incorporated in daily skincare products like moisturizers and foundations to provide UV protection.

    • Used in hair care products to prevent UV damage to hair fibers.

  3. Industrial Applications

    • Added to plastics and coatings to prevent UV degradation and prolong product life.

Secondary Uses 

  1. Textile Industry

    • Used in textile treatments to impart UV resistance to fabrics.

  2. Packaging Industry

    • Employed in packaging materials to protect contents from UV damage.

  3. Research and Development

    • Utilized in formulation studies for developing advanced UV protection systems.

KEY PRODUCT FEATURES

Basic Identification Attributes

  • Chemical Name (IUPAC): 2-Hydroxy-4-methoxybenzophenone-5-sulfonic acid

  • Common/Trade Name: Methoxy Benzophenone Sulfonic Acid

  • CAS Number: 4065-45-6

  • HS Code: 2914.39.00

  • Synonyms: Sulisobenzone; benzophenone-4; water-soluble UV filter

Physical & Chemical Properties

  • Physical State: Powder or crystalline solid

  • Color & Odor: White to off-white; odorless

  • Solubility: Soluble in water; slightly soluble in organic solvents

  • Melting Point: Approx. 260–270°C (decomposes)

  • pH: Stable in pH range 4–8

Safety & Hazard Attributes

  • GHS Classification: Not classified as hazardous under normal handling

  • Toxicity: Low toxicity; avoid ingestion and prolonged skin contact

  • Exposure Limits: No specific occupational exposure limits

Storage & Handling Attributes

  • Storage Conditions: Store in a cool, dry place away from light and moisture

  • Container Type: Supplied in sealed plastic or foil bags and drums

  • Shelf Life: Typically 24 months if stored properly

  • Handling Precautions: Use dust mask and gloves; avoid dust inhalation

 

Regulatory & Compliance Attributes

  • Complies with international cosmetic ingredient regulations (e.g., FDA, EU Cosmetics Regulation)

  • Approved as a UV filter ingredient in many countries worldwide

 

Environmental & Health Impact

  • Biodegradability: Expected to be biodegradable under environmental conditions

  • Ecotoxicity: Low environmental impact when used as directed

  • Bioaccumulation: Not expected to bioaccumulate

  • Carcinogenicity/Mutagenicity: Not classified as carcinogenic

SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

  • PPE Required: Gloves and dust mask recommended

  • Handling Guidelines: Use in well-ventilated areas; avoid inhalation of dust and skin contact

  • Storage Measures: Keep containers tightly closed and protected from moisture

 

First Aid Measures

  1. Inhalation: Move to fresh air if irritation occurs

  2. Skin Contact: Wash thoroughly with soap and water

  3. Eye Contact: Rinse with plenty of water for at least 15 minutes; seek medical attention if irritation persists

  4. Ingestion: Rinse mouth; seek medical advice if discomfort occurs

 

Firefighting Measures

  • Fire Hazards: Combustible solid

  • Extinguishing Media: Use water spray, foam, dry chemical, or CO2 extinguishers

  • Special Precautions: Avoid inhalation of smoke or dust

  • Hazardous Combustion Products: May produce carbon oxides under fire conditions