Cas 1253909-70-4,C15H15ClO4S

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Check Digit Verification of cas no

The CAS Registry Mumber 1253909-70-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,3,9,0 and 9 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1253909-70:
(9*1)+(8*2)+(7*5)+(6*3)+(5*9)+(4*0)+(3*9)+(2*7)+(1*0)=164
164 % 10 = 4
So 1253909-70-4 is a valid CAS Registry Number.

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1253909-70-4Relevant academic research and scientific papers

Chromene lock , thiol key , and mercury(II) ion hand : A single molecular machine recognition system

Huo, Fang-Jun,Sun, Yuan-Qiang,Su, Jing,Yang, Yu-Tao,Yin, Cai-Xia,Chao, Jian-Bin

, p. 4756 - 4759 (2010)

A regenerative, molecular machine-like ON-OFF-ON chemosensor based on a chromene molecule with the pyran ring OFF-ON-OFF cycle is reported for the first time. It behaves as a molecular lock that requires a thiol key to open the lock and a mercury(II) ion hand that unlatches the key for unsheathing the key to close the lock.

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