Description

Terephthalylidene Dicamphor Sulfonic Acid is a high-purity, synthetic organic compound primarily utilized as a key photostabilizing agent. Its core value lies in its exceptional ability to absorb and dissipate ultraviolet radiation, thereby protecting materials from degradation. This product is essential for manufacturers in the personal care and polymer industries seeking to enhance the longevity and performance of their formulations under UV exposure.

Application

• Broad-Spectrum UV Filter in Sunscreens: Acts as a primary photostabilizer in sun care products (SPF creams, lotions) to provide effective protection against UVA and UVB rays.
• Stabilizer for Cosmetic Formulations: Incorporated into daily wear cosmetics, anti-aging creams, and moisturizers to prevent ingredient breakdown and color fading caused by sunlight.
• Polymer and Coating Additive: Used to protect plastics, automotive coatings, and packaging materials from UV-induced yellowing, cracking, and loss of mechanical properties.
• Hair Care Product Component: Added to hair sprays, gels, and treatments to shield hair proteins and colorants from sun damage.
• Industrial Photostabilizer: Employed in the production of adhesives, sealants, and industrial finishes that require extended outdoor durability.

Basic Information

Product Name	Terephthalylidene Dicamphor Sulfonic Acid
CAS No.	90457-82-2
Molecular Formula	C28H34O8S
Molecular Weight	530.63 g/mol
Synonyms	TDSA; Terephthalylidene Dicamphor Sulfonic Acid; Ecamsule; Mexoryl® SX; 3,3'-(1,4-Phenylenedimethylene)bis(7,7-dimethyl-2-oxobicyclo[2.2.1]heptane-1-methanesulfonic acid); 1,4-Bis[(1-oxo-7,7-dimethyl-2-sulfobicyclo[2.2.1]hept-1-yl)methyl]benzene; 4-[[(1S,4R)-7,7-Dimethyl-2-oxo-3-bicyclo[2.2.1]heptanyl]methyl]benzenesulfonic acid (isomeric mixture).
EINECS	Contact for details

Quality Control

Our Terephthalylidene Dicamphor Sulfonic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for assay and purity, to ensure it meets stringent specifications suitable for cosmetic and industrial applications. Certificates of Analysis (COA) documenting identity, purity, and related substances are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.2%
pH (1% solution)	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.