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337531-19-8

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337531-19-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 337531-19-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,7,5,3 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 337531-19:
(8*3)+(7*3)+(6*7)+(5*5)+(4*3)+(3*1)+(2*1)+(1*9)=138
138 % 10 = 8
So 337531-19-8 is a valid CAS Registry Number.

337531-19-8Downstream Products

337531-19-8Relevant articles and documents

Microwave promoted environmentally benign synthesis of 2- aminobenzothiazoles and their urea derivatives

Li, Zheng,Xiao, Shuxiu,Tian, Guoqiang,Zhu, Anguo,Feng, Xu,Liu, Jing

experimental part, p. 1124 - 1133 (2009/04/06)

2-Aminobenzothiazoles were efficiently synthesized using stable, crystalline tetrabutylammonium tribromide instead of toxic, corrosive liquid bromine under solvent-free and microwave irradiation condition. Furthermore, benzothiazol-2-ylureas were synthesized in good to high yield by reactions of 2-aminobenzothiazoles with N-trichloroacetanilides, which were used as a substitute for toxic, unstable isocyanates, under microwave irradiation condition. This protocol has advantages of no utilization of hazardous chemicals, rapid reaction rate, high yield, and easy work-up procedure. Copyright Taylor & Francis Group, LLC.

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