Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
Oxybenzone
1. Basic Product Information
Product Name: Oxybenzone
CAS Number: 131-57-7
Molecular Formula: C14H12O3
Molecular Weight: 228.24
Synonyms: 2-Hydroxy-4-methoxybenzophenone, Benzophenone-3, BP-3
Product Category: UV absorber, cosmetic sunscreen raw material, plastic & polymer light stabilizer, fine aromatic chemical intermediate
2. Physical and Chemical Properties
Physical Indicators
- Appearance: Pale yellow crystalline powder or crystalline flakes
- Odor: Faint mild aromatic phenolic odor
- Solubility: Soluble in ethanol, isopropanol, acetone, toluene, mineral oil and cosmetic ester solvents; slightly soluble in hot water; insoluble in cold water and aliphatic alkanes
- Melting Point: 62–64 °C
- Boiling Point: 220 °C (18 mmHg)
- Density (20 °C): 1.16 g/cm3
- Flash Point: >100 °C
- Hygroscopicity: Non-hygroscopic under sealed dry storage
- Aqueous Stability: Stable under neutral and weakly acidic aqueous systems; prone to oxidation and dark discoloration under strong alkaline, high temperature or long-term UV irradiation
Chemical Characteristics
- Molecular Structure: Benzophenone derivative with hydroxyl group at ortho position and methoxy group at para position of one benzene ring
- Core Functional Mechanism: Broad-spectrum UV absorber that absorbs UVA and UVB radiation; converts ultraviolet light into low-energy heat to prevent photoaging and photodegradation of cosmetics, plastics and coatings
- Photostability: Moderately light-sensitive; prolonged intense UV exposure generates trace colored degradation impurities
- Thermal Stability: Stable below 100 °C; sustained high-temperature heating above 120 °C triggers slow thermal decomposition and releases irritating phenolic volatile fumes
- Chemical Compatibility: Compatible with most cosmetic oils, surfactants and polymer resins; incompatible with strong oxidants, concentrated strong alkalis and heavy metal salts
3. Main Application Fields
- Core Application: Cosmetic Sunscreen Raw Material
Primary UV filtering ingredient for sunscreen lotion, facial cream, lipstick and daily skin care products to block ultraviolet rays and prevent skin sunburn and pigmentation - Plastic & Rubber Light Stabilizer
Anti-photoaging additive for PVC, polyolefin, polyester and polyurethane materials; prevents polymer yellowing and brittleness under long-term sunlight exposure - Coating & Ink Stabilizer
Anti-fading auxiliary for water-based coatings, printing inks and wood varnishes to extend outdoor service life - Fine Chemical Synthetic Intermediate
Aromatic ketone building block for manufacturing other benzophenone-type UV absorbers and organic dyes - Laboratory Analytical Reagent
UV absorption standard for spectrophotometer calibration and photochemistry research
4. Platform Category & Product Group Guidance
1) Domestic B2B Platform Category
Recommended Path: Organic Intermediates / Cosmetic Additives
Reason: Widely used aromatic UV absorber for cosmetics, plastic and coating industrial stabilization
2) English Product Group Dropdown Options
Recommended Selection: Basic Organic Chemicals
Do NOT select Pharmaceutical Chemicals exclusively; it is universal daily chemical and industrial light stabilizer raw material
3. Standard Foreign Trade Packaging Specification
1kg sealed PE plastic bottle for lab synthesis tests; 25kg double PE-lined light-proof fiber drum for bulk factory orders
5. Quality Specification Table
| Test Item | Standard Requirement |
| CAS Number | 131-57-7 |
| Molecular Formula | C14H12O3 |
| Appearance | Uniform pale yellow crystalline flakes without dark brown precipitates |
| HPLC Purity | Cosmetic Grade ≥99.0%, Industrial Grade ≥98.5% |
| Melting Point | 62–64 °C |
| Water Content (KF Method) | ≤0.15% |
| Chroma (APHA) | ≤150 |
| Heavy Metals (Pb) | ≤10 ppm |
| Ash Content | ≤0.05% |
| Standard Storage Package | Lightproof sealed PE lined fiber drum, dry warehouse storage |
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