12224-12-3 Usage
General Description
Fluorescent brightener 135, also known as bis-benzoxazole, is a synthetic organic compound commonly used as an optical brightener and fluorescent whitening agent in a variety of products such as detergents, soaps, textiles, and paper. It is primarily used to improve the appearance of materials by absorbing UV light and emitting blue light, thus giving the appearance of brighter, whiter, and cleaner surfaces. This chemical works by absorbing light in the ultraviolet and violet region and re-emitting it in the blue region, making it particularly effective in enhancing the brightness and color of materials. While it is considered safe for use in consumer products, there have been concerns raised about potential environmental impact and human health effects, prompting continued research and regulation to ensure its safe use in various applications.
Check Digit Verification of cas no
The CAS Registry Mumber 12224-12-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,2,2 and 4 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 12224-12:
(7*1)+(6*2)+(5*2)+(4*2)+(3*4)+(2*1)+(1*2)=53
53 % 10 = 3
So 12224-12-3 is a valid CAS Registry Number.
12224-12-3Relevant articles and documents
Photoactivatable turn-on fluorescence based on the photo-cleavage of the C-Br bond in 1,2-bis(5-(bromoethyl)benzoxazol-2-yl)ethane
Hao, Yongchao,Dong, Xian-Zi,Chen, Yi
, p. 3468 - 3472 (2014/08/05)
This paper describes photoactivatable turn-on fluorescence based on the photo-cleavage of the C-Br bond in 1,2-bis(5-(bromoethyl)benzoxazol-2-yl)ethane (1) in both solution and in a polymeric thin film. It was found that 1 exhibited very weak fluorescence in both solution and in a PMMA thin film, upon irradiation with 365 nm light, a strong fluorescence was detected. The strong fluorescence attributed to the photo-product resulted from the photo-induced cleavage of the C-Br bond in 1. Moreover, it was also found that the photo-cleavage of the C-Br bond in 1 can be performed using a two-photon induced process, and upon irradiation on a 1-PMMA thin film with a 780 nm femtosecond laser, finely resolved fluorescence images are obtained.
