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15657-67-7

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15657-67-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 15657-67-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,6,5 and 7 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 15657-67:
(7*1)+(6*5)+(5*6)+(4*5)+(3*7)+(2*6)+(1*7)=127
127 % 10 = 7
So 15657-67-7 is a valid CAS Registry Number.

15657-67-7Relevant articles and documents

Syntheses of -, -, and Paracyclophanes with 1,2,4,5-Tetracyanobenzene Units as Electron Acceptors

Staab, Heinz A.,Wahl, Peter,Kay, Kwang-Yol

, p. 541 - 550 (2007/10/02)

Paracyclophanes 1 - 4 containing tetracyanobenzene (TCNB) units opposite to different electron donor components have been synthesized via the corresponding substituted dithiaparacyclophanes 8, 10, 12, and 14.For the pyrolysis of the disulfones 9

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