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57660-38-5

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57660-38-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57660-38-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,6,6 and 0 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 57660-38:
(7*5)+(6*7)+(5*6)+(4*6)+(3*0)+(2*3)+(1*8)=145
145 % 10 = 5
So 57660-38-5 is a valid CAS Registry Number.

57660-38-5Relevant articles and documents

Synthesis and fluorescence properties of 4,5-, 4,6- and 5,6-disubstituted benzofurazan (2,1,3-benzoxadiazole) compounds

Okiyama, Natsuko,Uchiyama, Seiichi,Onoda, Maki,Imai, Kazuhiro,Santa, Tomofumi

, p. 165 - 173 (2002)

New 4,5-, 4,6- and 5,6-disubstituted benzofurazan (2,1,3-benzoxadiazole) compounds having various substituent groups were synthesized. Their fluorescence properties were obtained and the discussions were made to develop new sensitive and selective fluores

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