Phenylbenzimidazole Sulfonic Acid

Phenylbenzimidazole sulfonic acid (C13H10N2O3S) is a common sunscreen agent. Phenylbenzimidazole sulfonic acid is primarily a UVB protecting agent providing only minimal UVA protection. 

 

Product Description
INCI Name                  : Phenylbenzimidazole Sulfonic Acid
Chemical Name           : 2-Phenylbenzimidazole-5-sulfonic acid, 98%
CAS No                       : 27503-81-7
EINECS No                 : 248-502-0
Molecular Formula      : C₁₃H₁₀N₂O₃S
Molecular Weight        : 274.29

SPECIFICATION

Sr.	Test	Specification
01	Appearance	White to off white powder, almost odorless.
02	Identification (By IR)	The IR spectrum should be concordant with IR spectrum of the working standard
03	Loss on drying (% w/w) (for 4hrs at 105OC)	Not more than 0.2 %
04	Absorbance at 302 nm (on dried basis)	Should no differ by more than 3.0 %
05	Assay (By Titration) (% w/w, on dried basis)	Not less than 98.0 % and not more than 102.0 %

Applications :

Sunscreens, Personal Care products, Sun Care, Baby Sun Care, Daily Skin Care, Decorative cosmetic with sun protection, Broad spectrum UV-A filter
Functions : UV Booster, UV Protection, UV Light Absorber, Anti-Ageing, Skin Care, Sun Care, Hair Care, Water soluble UV filter