117912-34-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117912-34-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,9,1 and 2 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 117912-34:
(8*1)+(7*1)+(6*7)+(5*9)+(4*1)+(3*2)+(2*3)+(1*4)=122
122 % 10 = 2
So 117912-34-2 is a valid CAS Registry Number.