Description

Ecamsule ·2Na CAS NO 90458-75-6 is the disodium salt of ecamsule, a highly effective broad-spectrum ultraviolet (UVA) filter. This compound is valued for its exceptional photostability and efficacy in protecting against long-wave UVA rays, which are associated with skin aging and damage. It is a critical ingredient for formulators in the personal care and pharmaceutical industries seeking to develop advanced, high-SPF sun protection products.

Application

• Primary Sunscreen Formulations: A key active ingredient in high-performance sunscreens, lotions, and creams for enhanced UVA protection.
• Anti-Aging & Daily Wear Cosmetics: Incorporated into day creams, BB creams, and foundation to provide daily photoprotection.
• Pharmaceutical Topicals: Used in medicated skin care products designed for photosensitive conditions.
• Professional Sun Care: Formulated into products for specific markets requiring high, stable UVA-PF (Protection Factor).
• Lip Care Products: Used in sun-protective lip balms and sticks.
• Hair Care Sun Protection: An additive in sunscreens or leave-in conditioners designed to protect hair from UV damage.

Basic Information

Product Name	Ecamsule ·2Na
CAS No.	90458-75-6
Molecular Formula	C18H18N2O7S2 · 2Na
Molecular Weight	476.44 g/mol
Synonyms	Terephthalylidene Dicamphor Sulfonic Acid, Disodium Salt; Mexoryl® SX; Ecamsule Disodium; Drometrizole Trisiloxane (related compound); 3,3'-(1,4-Phenylenedimethylene)bis(7,7-dimethyl-2-oxobicyclo[2.2.1]heptane-1-methanesulfonic acid) disodium salt; Benzylidene Camphor Sulfonic Acid Derivative; UVA Filter 90458-75-6; UV Sunscreen Agent SX
EINECS	Contact for details

Quality Control

Our Ecamsule ·2Na is manufactured and tested to meet stringent quality standards suitable for cosmetic and pharmaceutical applications. Each batch is supported by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to cGMP (current Good Manufacturing Practice) guidelines to ensure consistency, traceability, and supply reliability for our global B2B partners.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent moisture absorption. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%
pH (1% Solution)	5.5 - 7.5

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