186971-69-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 186971-69-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,9,7 and 1 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 186971-69:
(8*1)+(7*8)+(6*6)+(5*9)+(4*7)+(3*1)+(2*6)+(1*9)=197
197 % 10 = 7
So 186971-69-7 is a valid CAS Registry Number.