Product Name: Ensulizole

Chemical Name: 2-Phenylbenzimidazole-5-Sulfonic Acid

Synonyms: Ultraviolet absorbent UV-T; UV-T; Novantisol; UV absorber-T; PBSA; 2-phenyl-1H-benzimidazole-6-sulfonate; 2-Phenyl-1H-benimidazole,sulfonicacid; 2-phenyl-1h-benzimidazole-5-sulfonicaci; 2-phenyl-1H-benzimidazole-6-sulfonic acid; 2-phenyl-1H-benzimidazole-5-sulphonic acid; 2-phenyl-1h-benzo[d]imidazole-5-sulfonic acid; 2-Phenyl-1H-benzo[d]imidazole-5-sulphonic acid

CAS No.: 27503-81-7

EINECS No.: 248-502-0

Molecular Formula: C13H10N2O3S

HS Code: 2933990099

Brief Introduction:

Ensulizole, also known as 2-Phenylbenzimidazole-5-Sulfonic Acid or UV-T, which is a sulfonated UV absorber. As a water-soluble high-efficiency UVB absorber, its UV absorption rate at about 302nm is at least 920, and it can also absorb a small part of the UVA band. Ensulizole is often used in conjunction with other ingredients such as Avobenzone, Titanium Dioxide, Zinc Oxide, Bis-ethylhexyloxyphenol Methoxyphenyl Triazine or Methylene Bis-Benzotriazolyl Tetramethylbutylphenol. When exposed to sunlight, its protective ability and quality will not gradually decrease over time.

Specifications of our Ensulizole (2-Phenylbenzimidazole-5-Sulfonic Acid):

Test Items	Specifications	Test Methods
Appearance	White to off-white powder	Visual
Identity UV	Complies with the Standard	UV USP<197U>
Identity IR	Complies with the Standard	UV USP<197K>
Assay by HPLC	98.0% ~ 102.0%	USP Monograph:  Ensulizole
UV Specific Extinction (E1%, 1cm at 302±2nm)	920 ~ 1000	Spectrophotometric
Loss on Drying	Not more than 2.0%	USP Monograph:  Ensulizole

UV Absorber Ensulizole (UV-T) is Mainly Used in the Following Fields:

1. Daily Cosmetics: Ensulizole (2-Phenylbenzimidazole-5-Sulfonic Acid) is widely used in sunscreen, lipstick, lotion, foundation and other cosmetics to protect the skin from ultraviolet damage.

2. Plastic Products: Ensulizole can be used as an ultraviolet absorber for plastic products, which can effectively extend the life of plastic products when used outdoors and prevent plastic materials from aging and yellowing.

3. Coatings and Inks: Ensulizole can also be used in coatings and inks to protect surfaces from ultraviolet rays and prevent color fading and surface aging.

Packaging:

1kg/Aluminum Foil Bag, 20kg/Carton, 25kg/Carton or according to the specific requirements from customers.

Storage Conditions:

Preserved in unopened original containers in a cool dry place before using; kept away from direct sunlight, heat and moisture.

Shelf Life:

24 months if stored under above mentioned conditions.