142661-64-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142661-64-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,6,6 and 1 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 142661-64:
(8*1)+(7*4)+(6*2)+(5*6)+(4*6)+(3*1)+(2*6)+(1*4)=121
121 % 10 = 1
So 142661-64-1 is a valid CAS Registry Number.