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342809-16-9

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342809-16-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 342809-16-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,2,8,0 and 9 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 342809-16:
(8*3)+(7*4)+(6*2)+(5*8)+(4*0)+(3*9)+(2*1)+(1*6)=139
139 % 10 = 9
So 342809-16-9 is a valid CAS Registry Number.

342809-16-9Relevant articles and documents

TiCl4-catalyzed friedel-crafts reaction of trifluoroacetaldehyde ethyl hemiacetal (TFAE)

Zhang, Jing,Chen, Yong-Jun,Zhang, Liang

experimental part, p. 3045 - 3052 (2011/09/12)

The TiCl4-catalyzed Friedel-Crafts reaction with trifluoroacetaldehyde ethyl hemiacetal is shown to serve as an efficient route for the synthesis of CF3-substitituted compounds of biological and synthetic importance, producing 2,2,2-trifluoroet

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