Description

Disodium Phenyl Dibenzimidazole Tetrasulfonate is a high-purity, water-soluble organic compound belonging to the class of sulfonated UV absorbers. This specialty chemical is valued for its exceptional photostability and ability to absorb a broad spectrum of ultraviolet light, making it a critical functional additive. It is primarily sought after by manufacturers in the personal care, polymer, and advanced material sectors for formulating high-performance sunscreens, coatings, and films that require durable UV protection.

Application

• Broad-Spectrum Sunscreen Agent: A key active ingredient in premium sun care products (SPF lotions, creams, sprays) for its effective UVA/UVB absorption.
• Polymer & Coating Stabilizer: Incorporated into plastics, paints, and varnishes to prevent UV-induced degradation, yellowing, and loss of mechanical properties.
• Textile Finishing: Used to impart durable UV protection to synthetic and natural fibers for outdoor apparel and technical fabrics.
• Advanced Material Additive: Enhances the lightfastness of specialty films, adhesives, and packaging materials exposed to sunlight.
• Cosmetic & Toiletry Formulations: Provides photostability to color cosmetics, hair care products, and skincare formulations containing light-sensitive ingredients.

Basic Information

Product Name	Disodium Phenyl Dibenzimidazole Tetrasulfonate
CAS No.	180898-37-7
Molecular Formula	C26H16N4Na2O12S4
Molecular Weight	750.66 g/mol
Synonyms	Bisdisulizole Disodium; Disodium Phenyl Dibenzimidazole Tetrasulfonate; Phenyldibenzimidazole Tetrasulfonic Acid Disodium Salt; Disodium 2,2'-Bis-(1,4-phenylene)bis[1H-benzimidazole-4,6-disulfonate]; Bisdisulizole; Tinosorb S (related trade name); UV Absorber 180898-37-7; Sunscreen Agent 180898-37-7
EINECS	Contact for details

Quality Control

Our Disodium Phenyl Dibenzimidazole Tetrasulfonate is manufactured under strict quality management systems. Each batch is subjected to rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets stringent specifications for cosmetic and industrial use. Certificates of Analysis (COA) documenting purity, heavy metal content, and microbiological limits are provided to guarantee supply reliability and batch-to-batch consistency.

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 after opening to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
pH (1% Solution)	6.0 - 8.0
Water Content	≤ 5.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Microbiological Total Count	≤ 1000 CFU/g

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