142917-84-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142917-84-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,9,1 and 7 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 142917-84:
(8*1)+(7*4)+(6*2)+(5*9)+(4*1)+(3*7)+(2*8)+(1*4)=138
138 % 10 = 8
So 142917-84-8 is a valid CAS Registry Number.