The CAS Registry Mumber 104435-61-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,4,3 and 5 respectively; the second part has 2 digits, 6 and 1 respectively. Calculate Digit Verification of CAS Registry Number 104435-61: (8*1)+(7*0)+(6*4)+(5*4)+(4*3)+(3*5)+(2*6)+(1*1)=92 92 % 10 = 2 So 104435-61-2 is a valid CAS Registry Number.
In the search for new anticancer drugs, XVI. Selective protection and deprotection of primary amino groups in spermine, spermidine and other polyamines
Sosnovsky,Lukszo
, p. 122 - 129 (1986)
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