1220840-68-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1220840-68-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,0,8,4 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1220840-68:
(9*1)+(8*2)+(7*2)+(6*0)+(5*8)+(4*4)+(3*0)+(2*6)+(1*8)=115
115 % 10 = 5
So 1220840-68-5 is a valid CAS Registry Number.
1220840-68-5Relevant academic research and scientific papers
BIFLUORENYLIDENE DERIVATIVES, THEIR PREPARATION AND USES THEREOF
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Page/Page column 14, (2010/04/27)
The invention relates to bifluorenylidene derivatives and their corresponding radical anions and radical-cations of the following general formula (II): wherein: Y = C=O and m is an integer ≥0, preferably m = 1, with the proviso that when m = 0, A = borany
