117855-64-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117855-64-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,8,5 and 5 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 117855-64:
(8*1)+(7*1)+(6*7)+(5*8)+(4*5)+(3*5)+(2*6)+(1*4)=148
148 % 10 = 8
So 117855-64-8 is a valid CAS Registry Number.