117742-82-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117742-82-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,7,4 and 2 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 117742-82:
(8*1)+(7*1)+(6*7)+(5*7)+(4*4)+(3*2)+(2*8)+(1*2)=132
132 % 10 = 2
So 117742-82-2 is a valid CAS Registry Number.